2000 data report gunpowder river, patapsco/back river west...

2000 Data Report Gunpowder River, Patapsco/Back River

West Chesapeake Bay and Patuxent River Watersheds

Patapsco /Back River Basin

Patuxent River Basin

Gunpowder River Basin

West Chesapeake Bay Basin

2000 Data Report Gunpowder, Patapsco Patuxent, West Chesapeake 2 Document version: August 22, 2007

TABLE OF CONTENTS

INTRODUCTION............................................................................................................. 3

GUNPOWDER RIVER SUB-BASIN ............................................................................. 9

GUNPOWDER RIVER....................................................................................................... 10 LOWER BIG GUNPOWDER FALLS ................................................................................... 16 BIRD RIVER.................................................................................................................... 22 LITTLE GUNPOWDER FALLS ........................................................................................... 28 MIDDLE RIVER – BROWNS............................................................................................. 34

PATAPSCO RIVER SUB-BASIN................................................................................. 41

BACK RIVER .................................................................................................................. 43 BODKIN CREEK .............................................................................................................. 49 JONES FALLS .................................................................................................................. 55 GWYNNS FALLS ............................................................................................................. 65 PATAPSCO RIVER – LOWER NORTH BRANCH................................................................. 75 LIBERTY RESERVOIR ...................................................................................................... 85 SOUTH BRANCH PATAPSCO RIVER................................................................................. 96

WEST CHESAPEAKE AREA.................................................................................... 103

MAGOTHY RIVER ......................................................................................................... 104 SEVERN RIVER............................................................................................................. 110 SOUTH RIVER............................................................................................................... 116 WEST RIVER ................................................................................................................ 122

PATUXENT RIVER SUB-BASIN .............................................................................. 129

UPPER, LOWER PATUXENT RIVER AND WESTERN BRANCH MONITORING STATIONS .. 131 LITTLE PATUXENT RIVER............................................................................................. 137 MIDDLE PATUXENT RIVER........................................................................................... 148 ROCKY GORGE DAM.................................................................................................... 154 BRIGHTON DAM ........................................................................................................... 160


Introduction Section 303(d) of the federal Clean Water Act directs states to identify and list waters, known as water quality limited segments (WQLSs), for which technology-based effluent controls of a specified substance are inadequate to achieve water quality standards (40 Code of Federal Regulations 130.7(b)(i - iii)). For each WQLS each state must establish a Total Maximum Daily Load (TMDL). A TMDL is an estimate of the maximum amount of the pollutant that a waterbody can assimilate and still meet water quality standards. As a coordinating framework for Maryland’s TMDL program, the Maryland Department of the Environment has developed a watershed cycling approach. This approach focuses on protecting Maryland’s water quality by developing and implementing TMDLs in a comprehensive fashion by drainage basin (watershed). By adopting watersheds as the primary management units, MDE addresses the appropriate natural spatial domain and is able to consolidate the necessary resources with sufficient spatial focus.

This report compiles data collected in 2000 from Maryland’s Upper And Lower Western Shores, Patapsco/Back and Patuxent River Basins. Maryland’s Watershed Cycling Strategy Under the watershed cycling strategy, the State is divided into five regions. Monitoring activities are cycled through these regions over a five-year period (Figure 1). (The cycling process was initiated in the Lower Delmarva Peninsula region in 1998.) This approach allows a significant amount of resources to be concentrated in 20% of the State at any given time increasing resource efficiency and water quality evaluation intensity.

In each region, MDE collects water quality data for three wet periods (March, April, May) and three dry periods (July, August, September) for use in estimating watershed model loading rates and for water quality model calibration and validation. Note that these data collection efforts currently focus on characterizing the waterbody systems (flow, geometry, etc.) and water quality attributes associated with eutrophication problems (i.e., over-enrichment with nutrients, causing excessive algal growth leading to loss of water clarity and the potential for low dissolved oxygen levels).

The State’s watershed cycling strategy establishes a natural evaluation framework. As the cycle is completed for a given watershed, field monitoring will be repeated where it was conducted five-years before. This will provide an opportunity to assess the initial results of the TMDL and implementation activities. This watershed cycling framework is endorsed by the federal Environmental Protection Agency (EPA). A similar framework is used by many other states (e.g., Delaware has been using a similar approach for about 4 years).


Data Collection Methodology Field: A network of monitoring sites located on all major tributaries in each watershed was sampled during both high and low flow periods by MDE’s Field Monitoring Program to obtain a broad characterization of water qua lity conditions. Measurements of stream flow were made at the time of each sampling event, using either U.S. Geological Survey gages or in-situ measurements of flow velocity and cross-sectional area. Laboratory: Standard laboratory methods were used to analyze samples for the constituents included above. All collections are discrete grab samples interval collections using multiple laboratories. Nutrient chemistry is analyzed by the University of Maryland, Chesapeake Biological Laboratory, using their protocols. BOD5, active chlorophyll a, pheophytin are analyzed by the Department of Health and Mental Hygiene. Physical in-situ measurements are done for water and air temperature, dissolved oxygen, conductivity, salinity and pH. Flows are measured at all free flowing “watershed” sites using standard hydrological techniques, primarily the stream segmentation method. Data Management: The monitoring effort was coordinated with parallel data management activities. The data collected in the field was assembled and verified using standard software maintained for this purpose by the MDE-TARSA Computer Modeling Program. After the data has gone through data QA/QC process it is archived in SAS data sets for future use.


Table 1: Key Parameters Ascertained by Monitoring within the Watershed Cycling

Strategy

Parameter Units Total Organic Carbon mg/l as C Dissolved Organic Carbon filtered mg/as C Particulate Carbon mg/l as C Total Suspended Solids mg/l N Total Dissolved Nitrogen filtered mg/l as N Particulate Nitrogen filtered mg/l as N Ammonia mg/l as N Nitrate and Nitrite filtered mg/l as N Nitrite filtered mg/l N Total Phosphorus mg/l as P Dissolved Phosphorus mg/l as P Orthophosphate mg/l as P Particulate Phosphorus mg/l as P Particulate Inorganic Phosphorus mg/l as P Silicate mg/l BOD 5 day1 mg/l Chlorophyll a µg/l Secchi Depth m pH std unit Dissolved Oxygen mg/l Conductivity µs/cm

1 BOD was not collected at all stations because of lab constraints.


Report Organization The report is organized by geographic region delineated by four major drainage basins. The Upper Western Shore drainage basin consists of the Gunpowder River, Lower Gunpowder Falls, Bird River, Little Gunpowder Falls and Middle River-Browns. The Patapsco River/Back drainage basin consists of Back River, Bodkin Creek, Baltimore Harbor, Jones and Gwynn Falls, Patapsco River Lower and North Branch, Liberty Reservoir and South Branch Patapsco. The Lower Western Shore drainage basin consists of the Magothy, Severn, South and West Rivers. And the Patuxent drainage basin consists of the Patuxenet River Middle, Western Branch and the Patuxent River Upper, the Little and Middle Patuxent Rivers, and the Rocky Gorge and Brighton Dams. (see cover page). The cover page shows the smaller 8-digit basins contained within the larger 6-digit basins for which data was collected. This organization is reflected in the Table of Contents. For each 8-digit basin there is a map with stations, graphical presentations of data, and a station description list. The graphs include the parameters of most interest: chlorophyll a, dissolved oxygen, total suspended solids, BOD, dissolved inorganic nitrogen, dissolved inorganic phosphorus, total nitrogen and total phosphorus. Data is presented for the mainstem of the river, high flow (January-May) first and then low flow (July-October) followed by the same presentation for the tributaries. The graphs present data from the mouth of the water body progressively upstream. The data available in STORET at http://www.epa.gov/storet.


Gunpowder River Watershed

Gunpowder River

Lower Gunpowder Falls

Bird River

Little Gunpowder Falls

Middle River - Browns


Gunpowder River Sub-Basin (Sub-basin 02-13-08)

General Description (from 1998, 305 (b) Report) Water quality at the ambient water quality monitoring stations on the non-tidal Gunpowder River above and below Prettyboy and Loch Raven Reservoirs and water quality data from the MBSS program showed that water quality criteria were not exceeded and no use impairments were noted. Two areas of use impairment were reported in the estuarine portion of the Bush River watershed. The Baltimore County Health Department reported on a three-month long closure in the Miami Beach/Bowley's Quarters area of Middle River because of excessive bacterial levels due to high waterfowl densities in the area. A study of ambient toxicity in Middle River identified nickel and copper as the source of impacts observed near Wilson Point. There are two significant, publicly-owned impoundments in this basin, both of which are part of a drinking water supply reservoir for the Baltimore metropolitan area. Loch Raven Reservoir (2,400.0 acres) and Prettyboy Reservoir (1,500.0 acres) are located on the mainstem Gunpowder River. Both reservoirs are listed as having some partial use impairment as a result of low oxygen levels in the deeper portions of these lakes. The source of the hypoxic conditions there is considered to be a result of accelerated eutrophication due to nutrients entering the lake from the watershed (source unknown) and excessive sediment-oxygen demand by bacteria in the organic -rich sediments. Water Quality Summary Nutrient impairments to water quality in the Lower Gunpowder Falls (02130802), the Little Gunpowder Falls (02130804) and the Gunpowder River will be addressed at a future date. Middle River-Browns (02130807) will be addressed by a cooperative effort by the Bay States, with the EPA Chesapeake Bay Program taking the lead. A Water Quality Analysis indicating no nutrient impairments in the Bird River (02130803) received a concurrence from EPA on May 5, 2005.


Gunpowder River

Gunpowder River Monitoring Stations

Map Prepared by the Maryland Department of the Environment Science Services Administration Montgomery Park Business Center 1800 Washington Boulevard, Suite 540 Baltimore, Maryland 21230-1718


Gunpowder River High Flow Conditions (December-May)

Stations are presented from left to right from downstream to upstream

Chlorophyll a

0

15

30

45

60

Route 6 Battery Point Mid-River FG 13

XIG8816 XIF9996 XJG0410 XJF2500

µg/li

ter

Dissolved Oxygen

0

5

10

15

20


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

Total Suspended Solids

0

25

50

75

100


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

Biological Oxygen Demand

0

3

6

9

12


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

B i o l o g i c a l O x y g e n D e m a n d

12/13/99 01/12/00 02/22/00 02/28/00 03/07/00 04/05/00 05/02/00 05/23/000


Gunpowder River High Flow Conditions (December-May)


Dissolved Inorganic Nitrogen

0

0.4

0.8

1.2

1.6


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

Dissolved Inorganic Phosphorus

0

0.01

0.02

0.03

0.04


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

Total Nitrogen

0

0.8

1.6

2.4

3.2


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

Total Phosphorus

0

0.04

0.08

0.12

0.16


XIG8816 XIF9996 XJG0410 XJF2500

mg

/lite

r

G u n p o w d e r R i v e r

0

20

Route 6 Battery Point

12/13/99 01/12/00 02/22/00 02/28/00 03/07/00 04/05/00 05/02/00 05/23/00


Gunpowder River Low Flow Conditions (June to November)


Chlorophyll a

0

5

10

15

20

XIG8816 XIF9996 XJG0410 XJF2500


µg/li

ter

Dissolved Oxygen

0

3

6

9

12

XIG8816 XIF9996 XJG0410 XJF2500


mg

/lite

r


0

10

20

30

40

XIG8816 XIF9996 XJG0410 XJF2500


mg

/lite

r


0

1.5

3

4.5

6

XIG8816 XIF9996 XJG0410 XJF2500


mg

/lite

r

05

1015

XIG8816 XIF9996


06/05/00 07/11/00 08/01/00 08/30/00 10/12/99 10/25/99 11/15/99 11/29/99


Gunpowder River Low Flow Conditions (June to November)



0

0.3

0.6

0.9

1.2

XIG8816 XIF9996 XJG0410 XJF2500


mg

/lite

r


0

0.01

0.02

0.03

0.04

XIG8816 XIF9996 XJG0410 XJF2500


mg

/lite

r

Total Nitrogen

0

0.4

0.8

1.2

1.6

XIG8816 XIF9996 XJG0410 XJF2500


mg

/lite

r

Total Phosphorus

0

0.02

0.04

0.06

0.08

XIG8816 XIF9996 XJG0410 XJF2500

Route 6 Battery Point Mid-River FG 13m

g/li

ter

05

1015

XIG8816 XIF9996


06/05/00 08/01/00 08/30/00 10/12/99 10/25/99 11/15/99 11/29/99


GUNPOWDER RIVER STATION LIST

Station Code

Station Names Lat/Long Description

GUNPOWDER RIVER

XIG8816 Route 6 39 18.360 76 18.914

In channel, near R 6. Depth ~35 ft.

XIF9996 Battery Point 39 19.871 76 20.404

SW of Battery Point. Depth ~ 6 ft.

XJG0410 Mid-River 39 20.370 76 18.969

Mid-river. Depth ~ 7 ft.

XJF2500 FG 13 39 22.557 76 19.990

East of FG 13. Depth ~ 7 ft.


Lower Big Gunpowder Falls

Lower Big Gunpowder Falls Monitoring Stations



Lower Big Gunpowder Falls High Flow Conditions (December-May)


Chlorophyll a

0

2

4

6

8

Route 7 Gunpowder FallsState Park

Long Green Creek Harford Road Cromwell Bridge Rd

GUN0036 GUN0059 LOG0011 GUN0109 GUN0125

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Route 7 Gunpowder FallsState Park

Long GreenCreek

Harford Road Cromwell BridgeRd



0

50

100

150

200

Route 7 GunpowderFalls State

Park

Long GreenCreek

HarfordRoad

CromwellBridge Rd


mg

/lite

r


0

6

12

18

24


Park

Long GreenCreek

Harford Road CromwellBridge Rd

GUN0036 GUN0059 LOG0011 GUN0109 GUN0125m

g/li

ter

0

0.05

0.1

0.15

0.2

Route 7 Gunpowder Falls State Park Long Green Creek Harford Road Cromwell Bridge Rd Cowen Run

GUN0036 GUN0059 LOG0011 GUN0109 GUN0125 CWE0013

12/14/99 01/11/00 01/24/00 02/23/00 02/29/00 03/06/00 03/07/00 04/03/00 05/01/00


Lower Big Gunpowder Falls High Flow Conditions (December-May)



0

1.5

3

4.5

6


Park

Long GreenCreek

HarfordRoad

CromwellBridge Rd


mg

/lite

r


0

0.05

0.1

0.15

0.2


Park

Long GreenCreek

HarfordRoad

CromwellBridge Rd


mg

/lite

r

Total Nitrogen

0

1.5

3

4.5

6


Park

Long GreenCreek



mg

/lite

r

Total Phosphorus

0

0.3

0.6

0.9

1.2


Park

Long GreenCreek


GUN0036 GUN0059 LOG0011 GUN0109 GUN0125m

g/li

ter

00.050.1

0.150.2



12/14/99 01/11/00 01/24/00 02/23/00 02/29/00 03/06/00 03/07/00 04/03/00 05/01/00


Lower Big Gunpowder Falls Low Flow Conditions (June to November)


Chlorophyll a

048

1216

Rou

te 7

Gun

pow

der

Falls

Sta

teP

ark

Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

en R

un


µg

/lite

r

Dissolved Oxygen

05

101520

Rou

te 7

Gun

pow

der

Falls

Sta

teP

ark

Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

en R

un


mg

/lite

r


0

10

20

30

40

Rou

te 7

Gun

pow

der

Fal

ls S

tate

Par

k Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

enR

un


mg

/lite

r


0

1.5

3

4.5

6

Rou

te 7

Gun

pow

der

Fal

ls S

tate

Par

k Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

enR

un


mg

/lite

r

0

5

Route 7 Gunpowder Falls State Park Long Green Creek Harford Road Cromwell Bridge Rd Cowen Run06/20/00 07/10/00 07/31/00 08/29/00 11/16/99 11/30/99


Lower Big Gunpowder Falls Low Flow Conditions (June to November)



01.22.43.64.8

Rou

te 7

Gun

pow

der

Falls

Sta

teP

ark

Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

en R

un


mg

/lite

r


00.0150.03

0.0450.06

Rou

te 7

Gun

pow

der

Falls

Sta

teP

ark

Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

en R

un


mg

/lite

r

Total Nitrogen

01.22.4

3.64.8

Rou

te 7

Gun

pow

der

Falls

Sta

teP

ark

Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

en R

un


mg

/lite

r

Total Phosphorus

00.3

0.60.9

1.2

Rou

te 7

Gun

pow

der

Falls

Sta

teP

ark

Long

Gre

enC

reek

Har

ford

Roa

d

Cro

mw

ell

Brid

ge R

d

Cow

en R

un

GUN0036 GUN0059 LOG0011 GUN0109 GUN0125 CWE0013m

g/li

ter

0

2

4

6


06/20/00 07/10/00 07/31/00 11/16/99 11/30/99


LOWER BIG GUNPOWDER FALLS STATION LIST Station Code

Station Names

Lat/Long Description

LOWER BIG GUNPOWDER FALLS (below reservoir)

GUN0036

Route 7 39 24.836 76 24.338

Rte 7 crossing.

GUN0059

Gunpowder Falls State

Park

39 25.293 76 26.227

Richlyn Drive – downstream of Richlyn Manor WWTP. From Rte 1 North (Belair Rd) make right at Forge Road; follow to left on Richlyn Drive. Follow to gate to Gunpowder Falls State Park and proceed down to WWTP.

GUN0109

Harford Road 39 25.326 76 30.130

Harford Road crossing. Follow trail downstream of bridge to collect bank sample.

GUN0125

Cromwell Bridge Rd

39 25.539 76 31.765

Cromwell Bridge Road/Glenarm Road bridge crossing.

LONG GREEN CREEK (tributary of Lower Big Gunpowder)

LOG0011

Long Green Creek

39 26.925 76 28.325

Harford Road crossing. No good pull-off area; use Hartley Mill Road to park and walk to Harford Rd bridge crossing. There is a staff gage ~0.3 miles upstream on Hartley Mill Rd. Staff is located above Hillrise Rd and below Glen Arm Rd.

COWEN RUN

CWE0013

Cowen Run 39 26.612 76 30.593


Bird River

Bird River Monitoring Stations



Bird River High Flow Conditions (December-May)


Chlorophyll a

08

162432

XJF3189 XJF2778 WNN0012 WHR0006

Amtrak Bridge Harwood Park Windlass Run White MarshRun

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

XJF3189 XJF2778 WNN0012 WHR0006


mg

/lite

r


0

30

60

90

120

XJF3189 XJF2778 WNN0012 WHR0006


mg/

liter


0

2

4

6

8

XJF3189 XJF2778 WNN0012 WHR0006


mg

/lite

r

05

1015

XJF3189 XJF2778 WNN0012 WHR0006

Amtrak Bridge Harwood Park Windlass Run White Marsh Run

12/13/99 01/12/00 02/22/00 02/28/00 03/07/00 04/05/00 05/02/00 05/23/00


Bird River High Flow Conditions (December-May)



0

0.4

0.8

1.2

1.6

XJF3189 XJF2778 WNN0012 WHR0006


mg/

liter


0

0.004

0.008

0.012

0.016

XJF3189 XJF2778 WNN0012 WHR0006


mg

/lite

r

Total Nitrogen

0

0.5

1

1.5

2

2.5

XJF3189 XJF2778 WNN0012 WHR0006


mg/

liter

Total Phosphorus

0

0.04

0.08

0.12

0.16

XJF3189 XJF2778 WNN0012 WHR0006


mg

/lite

r

05

1015

XJF3189 XJF2778 WNN0012 WHR0006

Amtrak Bridge Harwood Park Windlass Run White Marsh Run

12/13/99 01/12/00 02/22/00 02/28/00 03/07/00 04/05/00 05/02/00 05/23/00


Bird River Low Flow Conditions (June to November)


Chlorophyll a

0.0

10.0

20.0

30.0

40.0X

JF31

89

XJF

2778

XJF

3154

XJF

2866

WN

N00

12

WH

R00

06

AmtrakBridge

HarwoodPark

BirdRiver 2

BirdRiver 1

WindlassRun

WhiteMarsh

µg

/lite

rDissolved Oxygen

0.0

3.0

6.0

9.0

12.0

XJF3189 XJF2778 XJF3154 XJF2866 WNN0012 WHR0006

AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarsh

mg

/lite

r


04080

120160

XJF

3189

XJF

2778

XJF

3154

XJF

2866

WN

N00

12

WH

R00

06

AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarsh

mg

/lite

r


0.0

1.2

2.4

3.6

4.8


AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarsh

mg/

liter

04080

120160


Amtrak Bridge Harwood Park Bird River 2 Bird River 1 Windlass Run White Marsh Run

06/05/00 07/11/00 08/01/00 08/30/00 10/12/99 10/25/99 11/15/99 11/29/99


Bird River Low Flow Conditions (June to November)



0.0

0.5

1.0

1.5

2.0


AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarsh

mg

/lite

rDissolved Inorganic Phosphorus

0.0000.0050.0100.0150.020

XJF

3189

XJF

2778

XJF

3154

XJF

2866

WN

N00

12

WH

R00

06

AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarsh

mg

/lite

r

Total Nitrogen

0.00

0.50

1.00

1.50

2.00

2.50


AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarshRun

mg

/lite

r

Total Phosphorus

0.00

0.05

0.10

0.15

0.20


AmtrakBridge

HarwoodPark

Bird River2

Bird River1

WindlassRun

WhiteMarsh

mg

/lite

r

04080

120160


Amtrak Bridge Harwood Park Bird River 2 Bird River 1 Windlass Run White Marsh Run

06/05/00 07/11/00 08/01/00 08/30/00 10/12/99 10/25/99 11/15/99 11/29/99


BIRD RIVER STATION LIST

Station Code Station Names Lat/Long Description

BIRD RIVER

XJF3189

Amtrak bridge

39 23.185 --76 21.112

Immediately NW of Amtrak bridge in very shallow (2 FT) water. Not in dredged channel.

XJF2778

Harwood Park

39 22.729 -76 22.221

Close to un-named point on south shore of river. Off Harwood Park. 4 FT.

XJF2866

Bird River 1 39 22.830 -76 23.354

XJF3154

Bird River 2 39 23.121 -76 24.568

WINDLASS RUN (tributary of Bird River) WNN0012 MB-22

Windlass Run

39 21.990 -76 24.812

Bird River Road crossing. Road construction currently underway, but station can be accessed. Baltimore County ADC map 30 – B12.

WHITE MARSH RUN (tributary of Bird River) WHR0006 MB-23

White Marsh Run

39 22.678 -76 25.466

Ebenezer Road crossing.


Little Gunpowder Falls

Little Gunpowder Falls Monitoring Stations



Little Gunpowder Falls High Flow Conditions (December-May)


Chlorophyll a

08

162432

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch

LGU0024LGU0048LGU0107LGU0127LGU0153LGU0191LGU0205WDC0006

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

LGU0024 LGU0048 LGU0107 LGU0127 LGU0153 LGU0191 LGU0205

mg

/lite

r


060

120180240

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r


0.00.81.6

2.43.2

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch

LGU0024LGU0048LGU0107LGU0127LGU0153LGU0191LGU0205WDC0006m

g/li

ter

01/00/00

01/01/00

01/02/00

01/03/00

Route 7 Jericho Rd Covered Bridge Bottom Rd USGS Pleasantville Rd Greene Rd Jarrettsville Rd Pocock Rd Wild Cat Branch

12/14/99 01/11/00 01/24/00 02/23/00 02/29/00 03/06/00 04/03/00

05/01/00 05/24/00


Little Gunpowder Falls High Flow Conditions (December-May)



01.22.43.64.8

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r


00.040.080.120.16

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

Total Nitrogen

01

234

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

Total Phosphorus

0

0.2

0.4

0.6

0.8

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

01/00/00

01/01/00

01/02/00

01/03/00


12/14/99 01/11/00 01/24/00 02/23/00 02/29/00 03/06/00 04/03/00

05/01/00 05/24/00


Little Gunpowder Falls Low Flow Conditions (June to November)


Chlorophyll a

0

1

2

3

4R

oute

7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


µg/li

ter

Dissolved Oxygen

048

1216

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r


05

1015

20

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

Bological Oxygen Demand

01.5

3

4.56

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

0

2

4

6


06/20/00 07/10/00 07/31/00 08/29/00 10/13/99 10/26/99 11/16/99 11/30/99


Little Gunpowder Falls Low Flow Conditions (June to November)



01234

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r


00.010.020.030.04

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

Total Nitrogen

01234

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch


mg

/lite

r

Total Phosphorus

00.3

0.60.9

1.2

Rou

te 7

Jeric

ho R

dC

over

edB

ridge

Bot

tom

Rd

US

GS

Ple

asan

tvill

eR

d

Gre

ene

Rd

Jarr

etts

ville

Rd

Poc

ock

Rd

Wild

Cat

Bra

nch

LGU0024LGU0048LGU0107LGU0127LGU0153LGU0191LGU0205WDC0006m

g/li

ter

0

2

4

6


06/20/00 07/10/00 07/31/00 08/29/00 10/13/99 10/26/99 11/16/99 11/30/99


LITTLE GUNPOWDER FALLS STATION LIST

Station Code

Station Names


LITTLE GUNPOWDER FALLS LGU0024

Route 7 39 25.422 76 22.709

Rte 7 crossing. Sample bank from fisherman’s path.

LGU0048

Jericho Rd. Covered Bridge

39 27.578 76 23.256

Jericho Road crossing at covered bridge. . Take Jericho south off of Jerusalem Road. Bank sample. Baltimore County ADC map 22 – F8/9

LGU0107

Bottom Rd. USGS

39 30.303 76 25.962

Bottom Road crossing. USGS Gage upstream of road crossing.

LGU0127

Pleasantville Rd.

39 30.450 76 27.562

Pleasantville Road crossing.

LGU0153

Greene Rd.

39 31.488 76 29.848

Greene Road crossing. Make sure you are getting the Little Gunpowder and not the small tributary entering the LGF. There are two crossings on Greene Road. Harford County ADC map 15 – D10.

LGU0191

Jarrettsville Rd.

39 32.615 76 31.849

Jarrettsville Road (Rte 146) crossing.

LGU0205

Pocock Rd. 39 34.312 76 32.450

Pocock Road crossing.

WILD CAT BRANCH (tributary of Little Gunpowder) WDC0006

Wild Cat Branch

39 28.860 76 24.105

Reckord Road crossing. Harford County ADC map 22 – H5. Rocky streambed, but flow is possible.


Middle River – Browns

Middle River – Browns Monitoring Stations

Map Prepared by the MD Department of the Environment Science Services Administration Montgomery Park Business Center 1800 Washington Boulevard, Suite 540 Baltimore, Maryland 21230-1718


Middle River-Browns High Flow Conditions (December-May)


Chlorophyll a

0

20

40

60

80

BrownsCreek

Bowley Point LightedBecon

Frog MortarCreek

HawthornPark

XIF6466 XIF7768 XIF8454 XIF8958 XIF9536

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r


0

15

30

45

60

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r


0

3

6

9

12

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r

01/00/00

01/05/00

01/10/00

Browns Creek Bowley Point Lighted Becon Frog Mortar Creek Hawthorn Park


12/13/99 01/12/00 02/22/00 02/28/00 03/07/00 04/05/00 05/02/00 05/23/00


Middle River-Browns High Flow Conditions (December-May)



0.00

0.40

0.80

1.20

1.60

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r


0.00

0.01

0.01

0.02

0.03

BrownsCreek


Frog MortarCreek

HawthornPark


mg

/lite

r

Total Nitrogen

0.0

0.6

1.2

1.8

2.4

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r

Total Phosphorus

0.00

0.04

0.08

0.12

0.16

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r

01/00/00

01/05/00

01/10/00



12/13/99 01/12/00 02/22/00 02/28/00 03/07/00 04/05/00 05/02/00 05/23/00


Middle River-Browns Low Flow Conditions (June to November)


Chlorophyll a

0

25

50

75

100

BrownsCreek


Frog MortarCreek

HawthornPark


µg/li

ter

Dissolved Oxygen

0

4

8

12

16

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r


0

15

30

45

60

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg/

liter


0

3

6

9

12

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r

0

50

100



06/05/00 07/11/00 08/01/00 08/30/00 10/12/99 10/25/99 11/15/99 11/29/99


Middle River-Browns Low Flow Conditions (June to November)



0

0.3

0.6

0.9

1.2

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r


0

0.01

0.02

0.03

0.04

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r

Total Nitrogen

0

0.4

0.8

1.2

1.6

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark


mg

/lite

r

Total Phosphorus

00.040.080.120.16

BrownsCreek

BowleyPoint

LightedBecon

Frog MortarCreek

HawthornPark

XIF6466 XIF7768 XIF8454 XIF8958 XIF9536m

g/lit

er

0

50

100


XIF6466 XIF7768 XIF8454 XIF8958 XIF953606/05/00 07/11/00 08/01/00 08/30/00 10/12/99 10/25/99 11/15/99 11/29/99


MIDDLE RIVER – BROWNS STATION LIST


MIDDLE RIVER

XIF7768

Bowley Point 39 17.610 76 23.326

West of DM R6, south of Bowley Point. Depth ~ 10 ft.

XIF8454

Lighted Beacon 39 18.375 76 24.636

Middle of marked channel, SW of lighted beacon. Depth ~ 7-10 ft.

XIF9536

Hawthorn Park 39 19.475 76 26.381

At end of Midthorn Road. Sample from pier at Hawthorn Park.

FROG MORTAR CR. (TRIBUTARY OF MIDDLE RIVER)

XIF8958

Frog Mortar Creek 39 18.892 76 24.230

SE of Martin State Airport. Depth ~ 12 ft.

BROWNS CR. (TRIBUTARY OF MIDDLE RIVER)

XIF6466

Browns Creek 39 16.440 76 23.432

Between Balliston Point and Wells Point. Depth ~ 6 ft.


Patapsco/Back River Watersheds

Back River

Bodkin Creek

Jones Falls

Gwynn Falls

Patapsco River Lower North Branch

Liberty Reservior

Patapsco River South Branch


Patapsco River Sub-Basin (Sub-basin 02-13-09)

General Description (from 1998, 305 (b) Report) The Patapsco/Back Rivers sub-basin drains 635 square miles of Baltimore City and portions of Anne Arundel, Baltimore, Carroll, and Howard Counties. Except for the immediate area surrounding the Baltimore Harbor area, most of the sub-basin lies in the Piedmont Province; the remaining area lies in the Coastal Plain Province. Large water bodies include Back River, Gwynns and Jones Falls, the South and North Branches of the Patapsco River, Lake Roland, Piney Run Reservoir, Liberty Reservoir, and Baltimore Harbor, a tidal embayment formed at the confluence of the Patapsco River and the Jones and Gwynns Falls. Land in the Patapsco River sub-basin is primarily developed (47 percent of the drainage land area) although there are significant forest and agricultural areas (29 and 23 percent), particularly in the western portion of the watershed. The City of Baltimore is the sub-basin's largest city with suburban communities extending outward in all directions. Other major communities in this sub-basin include Ellicott City, Towson and Glen Burnie. Most surface waters in the sub-basin are classified as Use I (water contact recreation and aquatic life), Use III (natural trout) or Use IV (put-and-take trout). Above Liberty Reservoir dam or above the Springfield intake, surface waters are classified as Use I-P (water contact recreation, aquatic life and public water supply) or Use III-P (natural trout and public water supply) or IV-P (put-and-take trout and public water supply) (COMAR '26.08.02.08J). For the most recent information regarding specific use classes in this watershed, the reader is referred to the Code of Maryland Regulations. One small creek, located in North Point State Park (Shallow Creek) is classified as a Use II water and is technically located in this sub-basin, even though it empties directly into the Bay. This creek is closed to shellfish harvesting because of the lack of a monitoring program rather than having poor water quality (Kathy Brohawn, 1998, pers. comm.). The State routinely monitors water quality at two Bay Tributary stations and at five additional CORE/Trend stations located in the free-flowing and tidal Patapsco River and in Jones and Gwynns Falls. In addition to chemical sampling, phytoplankton and microzooplankton (one station) and mesozooplankton (one station) communities are monitored. Five fixed Long Term Benthic Macroinvertebrate program stations are monitored for estuarine benthos in addition to randomly selected Long Term Benthic Macroinvertebrate program sites. The Maryland Biological Stream Survey (MBSS) collected water quality samples at 61 stations in 1995 and at 69 stations in 1996. Because of sediment, nutrient and bacterial problems in urban and developing areas in this basin, four areas have been designated for special water quality restoration projects under the State's Targeted Watershed or MDE's Program. These include Sawmill Creek. Water Quality Summary Bodkin Creek (02130902) will be addressed by a cooperative effort by the Bay States with the EPA Chesapeake Bay Program taking the lead. Jones Falls (02130904), Gwynn Falls (02130905) , Patapsco River Lower N. Branch (02130906), and Liberty Reservoir (02130907) will be addressed at a future date. South Branch Patapsco (02130908) received a Water Quality Analysis concurrence from EPA on January 20, 2005, and Carroll County has agreed to do a watershed protection plan. TMDLs to address the nutrient impairments in Back River (02130901), and the


Baltimore Harbor (02130903), were developed by MDE. The Back River Nutrient TMDL was approved by EPA June 29, 2005 and the Baltimore Harbor Nutrient TMDL was submitted to EPA December 14, 2006.


Back River

Back River Monitoring Stations



Back River High Flow Conditions (December-May)


Chlorophyll a

0.0

1.5

3.0

4.5

6.0

Moore's Run1

Moore's Run2

Herring Run Red HouseRun

NortheastCreek

HRR0002 MOO0002 HRR0017 RDH0007 NEC0020

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r


0

12

24

36

48

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r


0

4

8

12

16

Moore's Run1

Moore's Run2


NortheastCreek

HRR0002 MOO0002 HRR0017 RDH0007 NEC0020m

g/li

ter

01/00/1900

01/00/1900

01/00/1900

01/00/1900

Moore's Run 1 Moore's Run 2 Herring Run Red House Run Northeast Creek

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/0

6/20

00

04/0

3/20

00

05/0

1/20

00

05/2

4/20

00


Back River High Flow Conditions (December-May)



0.0

0.8

1.6

2.4

3.2

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite


0.00

0.03

0.06

0.09

0.12

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r

Total Nitrogen

0

1

2

3

4

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r

Total Phosphorus

0.00

0.06

0.12

0.18

0.24

Moore's Run1

Moore's Run2


NortheastCreek


g/li

ter

01/00/1900

01/00/1900

01/00/1900

01/00/1900


12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/0

6/20

00

04/0

3/20

00

05/0

1/20

00

05/2

4/20

00


Back River Low Flow Conditions (June to November)


Chlorophyll a

0

3

6

9

12

Moore's Run1

Moore's Run2


NortheastCreek


µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r


0

7

14

21

28

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r


0

2

4

6

8

Moore's Run1

Moore's Run2


NortheastCreek


g/li

ter

01/00/1900

01/01/1900

01/02/1900

01/03/1900


06/20/2000 07/10/2000 07/31/2000 08/29/2000 10/13/1999 10/26/1999 11/16/1999 11/30/1999


Back River Low Flow Conditions (June to November)



0.0

0.6

1.2

1.8

2.4

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite


0.00

0.01

0.02

0.03

0.04

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r

Total Nitrogen

0.0

0.8

1.6

2.4

3.2

Moore's Run1

Moore's Run2


NortheastCreek


mg

/lite

r

Total Phosphorus

0.00

0.03

0.06

0.09

0.12

Moore's Run1

Moore's Run2


NortheastCreek


g/li

ter

01/00/1900

01/01/1900

01/02/1900

01/03/1900


06/20/2000 07/10/2000 07/31/2000 08/29/2000 10/13/1999 10/26/1999 11/16/1999 11/30/1999


BACK RIVER STATION LIST Station Code


HERRING RUN

HRR0017

Herring Run 39 18.375 76 32.306

Rte 40 crossing. Pull into Baltimore City Towing Division and collect bank sample.

HRR0002

Moore’s Run 1 39 18.477 76 30.991

Actually named Moores Run according to ADC map. From Baltimore City Towing Division, take Rte 40 West, make left onto North Pt Boulevard. Go through light at Quad Ave. Make left at industrial building on left near 500 block of North Pt Blvd; you are now on an unnamed gravel access road. Follow gravel road under the Rte 95 over-pass and over the first set of train tracks. Follow dirt road along second, larger set of train tracks until you reach a large concrete/steel pipe crossing over Moores Run. The site looks like a dumping grounds for concrete rubble and trash. The station will be obvious once found; no flow due to tidal influence. Baltimore County ADC map 36 – G10.

MOORE’S RUN

MOO0002

Moore’s Run 2 39 18.416 76 31.762

From Rte 40 take 64th or 65th Street and follow to Biddle Street. Make right on Biddle and follow to corner of 62nd Street and Biddle Street. There is a “Road End” sign here and a guard rail blocking where Biddle St used to continue. Walk along old existing Biddle St down to stream. Baltimore County ADC map 36 – E10.

RED HOUSE RUN

RDH0007

Red House Run

39 19.020 76 30.951

Red House Run at Rte 40 crossing. West bound Rte 40 has a good pull off location on bridge. Baltimore County ADC map 36 – G8.

NORTHEAST CREEK

NEC0020

Northeast Creek

39 19.799 76 28.446

Northeast Creek / Stemmers Run at Golden Ring Road bridge crossing. Good pull off in Kelly’s Bar parking lot directly across from station. . Baltimore County ADC map 37 – C6.


Bodkin Creek

Bodkin Creek Monitoring Stations



Bodkin Creek High Flow Conditions (December-May)


Chlorophyll a

0255075

100

BodkinCreek

MailCreek at

Mid

MainCreek at

Fork

WharfCreek

BackCreek

XHF8139 XHF7730 XHF7512 XHF7432 XHF8026

µg/li

ter

Dissolved Oxygen

048

1216

BodkinCreek

MailCreek at

Mid

MainCreek at

Fork

WharfCreek

BackCreek


mg

/lite

r


0

10

20

30

40

BodkinCreek

Mail Creekat Mid

MainCreek at

Fork

WharfCreek

BackCreek


mg

/lite

r


0

3

5

8

10

BodkinCreek

Mail Creekat Mid

Main Creekat Fork

WharfCreek

Back Creek

XHF8139 XHF7730 XHF7512 XHF7432 XHF8026m

g/li

ter

0

0.5

1

1.5

2

Bodkin Creek Mail Creek at Mid Main Creek at Fork Wharf Creek

XHF8139 XHF7730 XHF7512 XHF7432

12/1

3/99

01/1

2/00

02/2

2/00

02/2

8/00

03/1

5/00

04/1

2/00

05/1

0/00

05/2

3/00


Bodkin Creek High Flow Conditions (December-May)



0

0.4

0.8

1.2

1.6

BodkinCreek

Mail Creekat Mid

Main Creekat Fork

WharfCreek

Back Creek


mg

/lite

rDissolved Inroganic Phosphorus

0

0.006

0.012

0.018

0.024

BodkinCreek

Mail Creekat Mid

Main Creekat Fork

WharfCreek

Back Creek


mg

/lite

r

Total Nitrogen

0

0.5

1

1.5

2

BodkinCreek

Mail Creekat Mid

Main Creekat Fork

WharfCreek

Back Creek


mg

/lite

r

Total Phosphorus

0

0.025

0.05

0.075

0.1

BodkinCreek

Mail Creekat Mid

Main Creekat Fork

WharfCreek

Back Creek


mg

/lite

r

0

0.5

1

1.5

2

Bodkin Creek Mail Creek at Mid Main Creek at Fork Wharf Creek

XHF8139 XHF7730 XHF7512 XHF7432

12/1

3/99

01/1

2/00

02/2

2/00

02/2

8/00

03/1

5/00

04/1

2/00

05/1

0/00


Bodkin Creek Low Flow Conditions (June to November)


Chlorophyll a

0

40

80

120

160

BodkinCreek

Mail Creek atMid

Main Creekat Fork

Wharf Creek Back Creek


µg/li

ter

Dissolved Oxygen

0

3

6

9

12

BodkinCreek

Mail Creek atMid

Main Creekat Fork



mg

/lite

r

Toal Suspended Solids

0

20

40

60

80

BodkinCreek

Mail Creek atMid

Main Creekat Fork



mg

/lite

r


0

4

8

12

16

Bodkin Creek Mail Creek atMid

Main Creekat Fork



mg

/lite

r

0

0.01

0.02

Bodkin Creek Mail Creek at Mid Main Creek at Fork Wharf Creek Back Creek


06/0

5/00

08/0

9/00

09/0

7/00

10/1

2/99

10/2

5/99

11/1

5/99

11/2

9/99


Bodkin Creek Low Flow Conditions (June to November)



0

0.25

0.5

0.75

1


Main Creek atFork

Wharf Creek

XHF8139 XHF7730 XHF7512 XHF7432

mg

/lite

r


0

0.005

0.01

0.015

0.02


Main Creekat Fork



mg

/lite

r

Total Nitrogen

0

0.8

1.6

2.4

3.2

BodkinCreek

Mail Creekat Mid

Main Creekat Fork

WharfCreek

Back Creek


mg

/lite

r

Total Phosphorus

0

0.05

0.1

0.15

0.2


Main Creek atFork



mg

/lite

r

0

0.01

0.02

Bodkin Creek Mail Creek at Mid Main Creek at Fork Wharf Creek Back Creek


06/0

5/00

08/0

9/00

09/0

7/00

10/1

2/99

10/2

5/99

11/1

5/99

11/2

9/99


BODKIN CREEK STATION LIST


BODKIN CREEK

XHF8139

Bodkin Creek 39 08.099 76 26.078

Approx. 350 ft east of markers G 9 and R 10. Depth ~ 9 ft.

MAIN CREEK

XHF7730

Main Creek mid

39 07.720 76 26.986

Mid-channel, off Graveyard Point (Ventnor Marina). Depth ~ 9 ft.

XHF7512

Main Creek at Forks

39 07.455 76 28.742

Head of creek, at confluence of forks. Depth ~ 4-5 ft.

WHARF CREEK

XHF7432

Wharf Creek 39 07.385 76 26.758

Mouth of creek between Old Bee Point and Orchard Point. Depth ~ 8 ft.

BACK CREEK

XHF8026

Back Creek 39 07.854 76 27.556

Depth ~ 8 ft.


Jones Falls

Jones Falls Monitoring Stations



Jones Falls (main) High Flow Conditions (December-May)


Chlorophyll a

05

101520

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.

JON0001JON0039JON0054JON0071JON0082JON0184JON0124JON0135JON0149

µg/li

ter

Dissolved Oxygen

05

101520

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r


0

40

80

120

160

Inne

rH

arbo

r

Ash

Str

eet

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r


0.01.53.04.56.0

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.

JON0001JON0039JON0054JON0071JON0082JON0184JON0124JON0135JON0149m

g/li

ter

01/00/1900

01/02/1900

01/04/1900

01/06/1900

Inner Harbor Ash Street Brand Ave. Smith Ave. footbridge below dam Sorrento Run Comm. Falls Rd. Greenspring Ave. Stevenson Rd.

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/0

7/20

00

03/0

8/20

00

04/0

5/20

00

05/0

2/20

00

05/0

3/20

00

05/2

4/20

00


Jones Falls (main) High Flow Conditions (December-May)



0.00.71.42.12.8

Inne

rH

arbo

r

Ash

Str

eet

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite


0.000.020.03

0.050.06

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

Total Nitrogen

0.0

0.7

1.4

2.1

2.8

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

Total Phosphorus

0.00

0.07

0.14

0.21

0.28

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/0

7/20

00

03/0

8/20

00

04/0

5/20

00

05/0

2/20

00

05/0

3/20

00

05/2

4/20

00


Jones Falls (main) Low Flow Conditions (June to November)


Chloropyll a

06

121824

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r


0

6

12

18

24

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r


0

2

3

5

6

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99

06/2

0/20

00

07/1

1/20

00

07/1

2/20

00

08/0

1/20

00

08/0

2/20

00

08/3

0/20

00

08/3

1/20

00


Jones Falls (main) Low Flow Conditions (June to November)



0.00.61.11.72.2

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r


0.000.010.020.030.04

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

Total Nitrogen

0.0

0.7

1.4

2.1

2.8

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

Total Phosphorus

0.00

0.03

0.05

0.08

0.10

Inne

r H

arbo

r

Ash

Stre

et

Bra

nd A

ve.

Sm

ith A

ve.

foot

brid

gebe

low

dam

Sor

rent

oR

un C

omm

.

Fal

ls R

d.

Gre

ensp

ring

Ave

.

Ste

vens

onR

d.


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99

06/2

0/20

00

07/1

1/20

00

07/1

2/20

00

08/0

1/20

00

08/0

2/20

00

08/3

0/20

00

08/3

1/20

00


Jones Falls (tributaries) High Flow Conditions (December-May)


Chlorophyll a

0

3

6

9

12

Stoney Run West Run Towson Run Roland Run GreenspringValley Rd

SRU0005 WST0000 TOH0002 UQQ0005 UQM0008

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Stoney Run West Run TowsonRun

Roland Run GreenspringValley Rd


mg

/lite

r


0

10

20

30

40



mg

/lite

r


0

2

3

5

6



mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900

Stoney Run West Run Towson Run Roland Run Greenspring Valley Rd


03/0

7/20

00

03/0

8/20

00

04/0

4/20

00

04/0

5/20

00

05/0

2/20

00

05/0

3/20

00


Jones Falls (tributaries) High Flow Conditions (December-May)



0

1

2

3

4

Stoney Run West Run TowsonRun

Roland Run GreenspringValley Rd


mg

/lite

r


0

0

0

0

0



mg

/lite

r

Total Nitrogen

0

1

2

3

4



mg

/lite

r

Total Phosphorus

0.0

0.3

0.6

0.9

1.2



mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900

Stoney Run West Run Towson Run Roland Run Greenspring Valley Rd


03/0

7/20

00

03/0

8/20

00

04/0

4/20

00

04/0

5/20

00

05/0

2/20

00

05/0

3/20

00


Jones Falls (tributaries) Low Flow Conditions (June to November)


Chlorophyll a

0

6

12

18

24

Stoney Run West Run Roland Run GreenspringValley Rd

SRU0005 WST0000 UQM0005 UQM0008

µg/li

ter

Dissolved Oxygen

0

4

8

12

16


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r


0

2

4

6

8


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r


0

2

4

6

8


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99

06/2

0/20

00

07/1

1/20

00

07/1

2/20

00

08/0

1/20

00

08/0

2/20

00

08/3

0/20

00

08/3

1/20

00


Jones Falls (tributaries) Low Flow Conditions (June to November)



0.0

0.7

1.4

2.1

2.8


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r


0.00

0.02

0.03

0.05

0.06


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r

Total Nitrogen

0.0

0.8

1.6

2.4

3.2


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r

Total Phosphorus

0.00

0.02

0.04

0.06

0.08


SRU0005 WST0000 UQM0005 UQM0008

mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99

06/2

0/20

00

07/1

1/20

00

07/1

2/20

00

08/0

1/20

00

08/0

2/20

00

08/3

0/20

00

08/3

1/20

00


JONES FALLS STATION LIST

Station Code


UPPER JONES FALLS

JON0001

Inner Harbor 39 17.163 76 36.260

Bridge sample from Eastern Ave. extension near Baltimore City historic pump house and Pier 6 Pavillion. Tidal. Station dropped after 4/14/00.

JON0039

Ash Street 39 19.649 76 38.415

Sample at end of Ash Street (off Clipper Mill Road).

JON0054

Brand Ave 39 20.727 76 38.966

Bridge sample from driveway to Brand Ave (driveway to Fleishmanns vinegar plant). Driveway is off west-bound Coldspring Lane.

JON0071

Smith Ave. 39 22.065 76 38.880

Bridge sample off Smith Ave. in Mt. Washington. Site is above confluence with Western Run.

JON0082

footbridge below dam

39 22.692 76 38.661

Take sample from footbridge below dam (off Lakeside Dr). Measure flow in one of three flumes below dam.

JON0184

Sorrento Run comm.

39 23.466 76 39.662

Take bank sample along Falls Road opposite Sorrento Run community.

JON0124

Falls Rd 39 24.863 76 40.071

Bridge sample from Falls Rd., just outside beltway.

JON0135

Greenspring Ave.

39 24.885 76 41.315

Bridge sample from Greenspring Ave.

JON0149

Stevenson Rd.

39 24.738 76 42.823

Bridge sample from Stevenson Rd.

STONEY RUN

SRU0005

Stoney Run 39 19.550 76 37.562

Bank sample at bottom of paved jogging trail starting at west side of Remington Ave. bridge. Park on trail. Measure flow and record staff height under bridge.

WEST RUN

WST0000

West Run 39 22.042 76 38.941

Bridge sample at Cottonworth Ave. Measure flow and record staff height under JFX bridge. Need to drive up and park in framing shop parking lot (just before Smith St. curves around). Walk down steps and under bridge to find staff.

TOWSON RUN

TOH0002

Towson Run 39 23.373 76 38.459

Bank sample near Bellona Ave. bridge. Station dropped after 4/14/00.

ROLAND RUN

UQQ0005

Roland Run 30 23.918 76 38.927

Bridge sample at Circle Rd. Station dropped after 4/14/00.

NORTH BRANCH (tributary of Jones Falls)

UQM0008

Greenspring Valley Rd.

39 25.345 76 42.633

Bridge sample at Greenspring Valley Rd.


Gwynns Falls

Gwynns Falls Monitoring Stations



Gwynns Falls (main) High Flow Conditions (December-May)


Chlorophyll a

04

812

16

Anna

polis R

d

Carroll

Park

USGS

Wilkens

Ave

Frankl

intown R

d

Gwynn

Oak Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

µg/li

ter

Dissolved Oxygen

0

48

12

16

Anna

polis R

d

Carroll

Park

USGS

Wilkens

Ave

Frank

lintow

n Rd

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r


0

40

80

120

160

Anna

polis R

d

Carroll

Park U

SGS

Wilkens

Ave

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r


0

2

4

6

8

Anna

polis R

d

Carroll

Park U

SGS

Wilkens

Ave

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r

0

510

15

Annapolis Rd Carroll Park USGS Wilkens Ave Franklintown Rd Gwynn Oak Rd Essex Rd Milford Mill Rd McDonough Rd Reisterstown Rd Gwynnbrook Ave

GWN0004 GWN0015 GWN0024 GWN0050 GWN0080 GWN0115 GWN0125 GWN0160 GWN0186 GWN0215

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/0

8/20

00

05/0

3/20

00


Gwynns Falls (main) High Flow Conditions (December-May)



0.0

0.8

1.6

2.4

3.2

Anna

polis R

d

Carroll

Park U

SGS

Wilkens

Ave

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r


0.00

0.02

0.04

0.06

0.08

Anna

polis R

d

Carroll

Park U

SGS

Wilkens

Ave

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r

Total Nitrogen

0.0

0.8

1.6

2.4

3.2

Anna

polis R

d

Carroll

Park

USGS

Wilkens

Ave

Frankl

intown R

d

Gwynn

Oak Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reister

stown R

d

Gwynnbro

ok Av

e

mg

/lite

r

Total Phosphorus

0.0

0.3

0.6

0.9

1.2

Anna

polis R

d

Carroll

Park U

SGS

Wilkens

Ave

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r

0

510

15

Annapolis Rd Carroll Park USGS Wilkens Ave Franklintown Rd Gwynn Oak Rd Essex Rd Milford Mill Rd McDonough Rd Reisterstown Rd Gwynnbrook Ave

GWN0004 GWN0015 GWN0024 GWN0050 GWN0080 GWN0115 GWN0125 GWN0160 GWN0186 GWN0215

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/0

8/20

00

05/0

3/20

00


Gwynns Falls (main) Low Flow Conditions (June to November)


Chlorophyll a

0.0

0.8

1.6

2.4

3.2

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r


0

8

16

24

32

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r


0

2

4

6

8

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

em

g/li

ter

05

1015

Carroll Park USGS Franklintown Rd Gwynn Oak Rd Essex Rd Milford Mill Rd McDonough Rd Reisterstown Rd Gwynnbrook Ave

GWN0015 GWN0050 GWN0080 GWN0115 GWN0125 GWN0160 GWN0186 GWN0215

06/2

0/20

00

07/1

2/20

00

08/0

2/20

00

08/3

1/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Gwynns Falls (main) Low Flow Conditions (June to November)



0

0.8

1.6

2.4

3.2

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r


0

0.01

0.02

0.03

0.04

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r

Total Nitrogen

0

0.8

1.6

2.4

3.2

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

e

mg

/lite

r

Total Phosphorus

0

0.3

0.6

0.9

1.2

Carroll

Park U

SGS

Frankl

intown R

d

Gwynn Oak

Rd

Essex

Rd

Milford

Mill Rd

McDono

ugh Rd

Reisters

town R

d

Gwynnbro

ok Av

em

g/li

ter

05

1015

Carroll Park USGS Franklintown Rd Gwynn Oak Rd Essex Rd Milford Mill Rd McDonough Rd Reisterstown Rd Gwynnbrook Ave

GWN0015 GWN0050 GWN0080 GWN0115 GWN0125 GWN0160 GWN0186 GWN0215

06/2

0/20

00

07/1

2/20

00

08/0

2/20

00

08/3

1/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Gwynns Falls (tributaries) High Flow Conditions (December-May)


Chlorophyll a

0

4

8

12

16

Maidens Choice Dead Run Scotts LevelBranch

Red Run

MRC0001 DDR0001 UHX0001 RDR0001

µg/li

ter

Dissolved Oxygen

0

4

8

12

16


Red Run

MRC0001 DDR0001 UHX0001 RDR0001

mg

/lite

r


0

8

16

24

32


Red Run

MRC0001 DDR0001 UHX0001 RDR0001

mg

/lite

r


0

4

8

12

16


Red Run

MRC0001 DDR0001 UHX0001 RDR0001m

g/li

ter

0

5

10

15

Maidens Choice Dead Run Scotts Level Branch Red Run

MRC0001 DDR0001 UHX0001 RDR0001

03/08/2000 04/04/2000 05/03/2000


Gwynns Falls (tributaries) High Flow Conditions (December-May)



0

0.5

1

1.5

2


Red Run

MRC0001 DDR0001 UHX0001 RDR0001

mg

/lite

r


0

0.02

0.04

0.06

0.08


Red Run

MRC0001 DDR0001 UHX0001 RDR0001

mg

/lite

r

Total Nitrogen

0

0.7

1.4

2.1

2.8


Red Run

MRC0001 DDR0001 UHX0001 RDR0001

mg

/lite

r

Total Phosphorus

0

0.04

0.08

0.12

0.16


Red Run

MRC0001 DDR0001 UHX0001 RDR0001

mg

/lite

r

0

5

10

15

Maidens Choice Dead Run Scotts Level Branch Red Run

MRC0001 DDR0001 UHX0001 RDR0001

03/08/2000 04/04/2000 05/03/2000


Gwynns Falls (tributaries) Low Flow Conditions (June to November)


Chlorophyl a

0

0.6

1.2

1.8

2.4

Dead Run Scotts Level Branch Red Run

DDR0001 UHX0001 RDR0001

µg/li

ter

Dissolved Oxygen

0

2.5

5

7.5

10


DDR0001 UHX0001 RDR0001

mg

/lite

r


0

4

8

12

16


DDR0001 UHX0001 RDR0001

mg

/lite

r


0

2

4

6

8


DDR0001 UHX0001 RDR0001

mg

/lite

r

0

5

10


DDR0001 UHX0001 RDR0001

07/12/2000 08/02/2000 08/31/2000


Gwynns Falls (tributaries) Low Flow Conditions (June to November)



0

1

2

3

4


DDR0001 UHX0001 RDR0001

mg

/lite

r


0

0.03

0.06

0.09

0.12


DDR0001 UHX0001 RDR0001

mg

/lite

r

Total Nitrogen

0

1.5

3

4.5

6


DDR0001 UHX0001 RDR0001

mg

/lite

r

Total Phosphorus

0

0.07

0.14

0.21

0.28


DDR0001 UHX0001 RDR0001

mg

/lite

r

0

5

10


DDR0001 UHX0001 RDR0001

07/12/2000 08/02/2000 08/31/2000


GWYNNS FALLS STATION LIST Station Code


GWYNNS FALLS

GWN0004

Annapolis Rd 39 16.140 76 37.800

Bridge sample from Annapolis Rd. Take 295N (Russell St) and turn near RESCO plant onto Annapolis Rd. Tidal. Station dropped after 4/14/00.

GWN0015

Carroll Park USGS

39 16.252 76 38.897

In Carroll Park Golf Course, off Washington Blvd. Sample off golf cart path which parallels river. USGS gage.

GWN0024

Wilkens Ave. 39 16.140 76 39.705

Bridge sample (bring milk crate and 2 ropes) or bank sample at Wilkens Ave. Station dropped after 4/14/00.

GWN0050

Franklintown Rd.

39 18.365 76 40.726

Bridge sample at Franklintown Rd.

GWN0080

Gwynn Oak Rd.

39 19.515 76 42.870

Bridge sample at Gwynn Oak Rd. Try to read staff gage on Purnell Dr.

GWN0115

Essex Road 39 20.759 76 44.048

Bridge sample at Essex Road. Located inside beltway (695) off Liberty Road (Rte 26).

GWN0125

Milford Mill Rd.

39 21.595 76 44.705

Bridge sample at Milford Mill Rd. Wier upstream is 50 ft wide.

GWN0160

McDonough Rd

39 23.493 76 45.915

Bridge sample at McDonough Rd. Park on west-bound side pull-off.

GWN0186

Reisterstown Rd.

39 25.279 76 46.910

Bridge sample at Reisterstown Rd.

GWN0215

Gwynnbrook Ave

39 26.587 76 46.990

Bridge sample at Gwynnbrook Ave.

MAIDEN’S CHOICE

MCR0001

Maiden’s Choice

39 16.579 76 39.737

Sample from top of concrete tunnel passing under Dukeland St. Try to read staff gage 75’ upstream of Wilkens Ave crossing. Station dropped after 4/14/00.

DEAD RUN

DDR0001

Dead Run 39 18.318 76 41.185

Bridge sample at Wethersfield Rd (closed to traffic). Good flow site 50 yds. upstream of bridge. Read staff under footbridge and take flow (no staff conversion).

SCOTTS LEVEL BRANCH

UHX0001

Scotts Level Branch

39 21.610 76 44.773

Bridge sample at Scotts Hill Rd (not Scotts Level Rd.). May be too rocky for flow.

RED RUN

RDR0001

Red Run 39 24.270 76 46.755

Bank sample at Painters Mill Rd. Park in ”South Station General Parking” for the Metro. Good flow site under bridge.


Patapsco River – Lower North Branch

Patapsco River Lower North Branch Monitoring Stations



Patapsco River Lower North Branch (main) High Flow Conditions (December-May)


Chlorophyll a

0369

12H

amm

onds

Ferry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd

PAT0148 PAT0176 PAT0222 PAT0285 PAT0347

µg

/lite

r

Dissolved Oxygen

0

4

8

12

16

HammondsFerry Rd

WashingtonBlvd

Ilchester Rd OldFrederick Rd

Old Ct Rd


mg

/lite

r


0

20

40

60

80

HammondsFerry Rd

WashingtonBlvd

Ilchester Rd OldFrederick Rd

Old Ct Rd


mg

/lite

r


02356

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd

PAT0148 PAT0176 PAT0222 PAT0285 PAT0347m

g/li

ter

01/00/1900

01/05/1900

01/10/1900

Hammonds Ferry Rd Washington Blvd Ilchester Rd Old Frederick Rd Woodstock/Old Ct Rd12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

5/20

00

04/1

2/20

00

05/1

0/20

00

05/2

4/20

00


Patapsco River Lower North Branch (main) High Flow Conditions (December-May)



0.01.02.03.04.0

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r


0.000.020.030.050.06

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r

Total Nitrogen

0.0

1.0

2.0

3.0

4.0

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r

Total Phosphorus

0.00

0.03

0.06

0.09

0.12

HammondsFerry Rd

WashingtonBlvd

Ilchester Rd OldFrederick

Rd

Old Ct Rd


mg

/lite

r

01/00/1900

01/05/1900

01/10/1900

Hammonds Ferry Rd Washington Blvd Ilchester Rd Old Frederick Rd Woodstock/Old Ct Rd12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

5/20

00

04/1

2/20

00

05/1

0/20

00

05/2

4/20

00


Patapsco River Lower North Branch (main) Low Flow Conditions (June to November)


Chlorophyll a

02468

Ham

mon

dsFe

rry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


µg/li

ter

Dissolved Oxygen

048

1216

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r


0

8

16

24

32

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r


0

1

2

4

5

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r

01/00/1900

01/00/1900

01/00/1900

01/00/1900

Hammonds Ferry Rd Washington Blvd Ilchester Rd Old Frederick Rd Woodstock/Old Ct Rd

PAT0148 PAT0176 PAT0222 PAT0285 PAT034706/2

0/20

00

08/0

9/20

00

09/0

7/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Patapsco River Lower North Branch (main) Low Flow Conditions (June to November)



0.00.81.62.43.2

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r


0.000.020.030.050.06

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r

Total Nitrogen

0.0

0.81.62.4

3.2

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r

Total Phosphorus

0.00

0.030.06

0.090.12

Ham

mon

dsF

erry

Rd

Was

hing

ton

Blv

d

Ilche

ster

Rd

Old

Fre

deric

kR

d

Woo

dsto

ck/O

ldC

t Rd


mg

/lite

r

01/00/1900

01/00/1900

01/00/1900

01/00/1900

Hammonds Ferry Rd Washington Blvd Ilchester Rd Old Frederick Rd Woodstock/Old Ct Rd

PAT0148 PAT0176 PAT0222 PAT0285 PAT034706/2

0/20

00

08/0

9/20

00

09/0

7/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Patapsco River Lower North Branch (tributaries) High Flow Conditions (December-May)


Chlorophyll a

0

3

6

9

12

Stony Run Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.

SRX0002 DXC0004 EBH0005 DGW0002 BCN0003 NPA0026

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

StonyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r


0

2

4

6

8


DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

Bological Oxygen Demand

0

2

3

5

6

Deep Run Herbert Run DogwoodRun

Brices Run NorthBranch P.

DXC0004 EBH0005 DGW0002 BCN0003 NPA0026

mg

/lite

r

01/00/190001/05/1900

01/10/190001/15/1900

Stony Run Deep Run Herbert Run Dogwood Run Brices Run North Branch P.


12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

5/20

00

04/1

2/20

00

05/1

0/20

00

05/2

4/20

00


Patapsco River Lower North Branch (tributaries) High Flow Conditions (December-May)



0.0

0.7

1.4

2.1

2.8


DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r


0.000

0.003

0.006

0.009

0.012


DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

Total Nitrogen

0.0

0.8

1.6

2.4

3.2


DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

Total Phosphorus

0.0

0.3

0.6

0.9

1.2


DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

01/00/190001/05/1900

01/10/190001/15/1900

Stony Run Deep Run Herbert Run Dogwood Run Brices Run North Branch P.


12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

5/20

00

04/1

2/20

00

05/1

0/20

00

05/2

4/20

00


Patapsco River Lower North Branch (tributaries) Low Flow Conditions (June to November)


Chlorophyll a

0.0

0.5

1.0

1.5

2.0

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.

SXR0002 DXC0004 EBH0005 DGW0002 BCN0003 NPA0026

µg/li

ter

Dissolved Oxygen

0

3

6

9

12

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r


0

3

5

8

10

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r


0

1

2

3

4

Deep Run Herbert Run DogwoodRun

Brices Run NorthBranch P.

DXC0004 EBH0005 DGW0002 BCN0003 NPA0026

mg

/lite

r

01/00/190001/02/190001/04/190001/06/1900

01/08/190001/10/190001/12/1900

Stoney Run Deep Run Herbert Run Dogwood Run Brices Run North Branch P.


06/2

0/20

00

08/0

9/20

00

09/0

7/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Patapsco River Lower North Branch (tributaries) Low Flow Conditions (June to November)



0.0

0.7

1.4

2.1

2.8

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r


0.000

0.007

0.014

0.021

0.028

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

Total Nitrogen

0.0

0.7

1.4

2.1

2.8

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

Total Phosphorus

0.00

0.02

0.03

0.05

0.06

StoneyRun

Deep Run HerbertRun

DogwoodRun

BricesRun

NorthBranch P.


mg

/lite

r

01/00/190001/02/190001/04/190001/06/1900

01/08/190001/10/190001/12/1900



06/2

0/20

00

08/0

9/20

00

09/0

7/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


LOWER NORTH BRANCH PATAPSCO STATION LIST


PATAPSCO RIVER

PAT0148

Hammonds Ferry Rd.

39 13.864 76 39.872

Hammonds Ferry Road Crossing Baltimore ADC Map 42 E-11

PAT0176

Wash. Blvd 39 13.059 76 42.394

Route 1 (Washington Boulevard) Crossing Baltimore ADC Map 41 J-13

PAT0222

Ilchester Rd 39 15.052 76 45.852

Ilchester Road Crossing. Park on south side near RR tracks. Bank sample.

PAT0285

Old Frederick Rd.

39 18.609 76 47.549

Old Frederick Road Crossing. Bank sample. Baltimore ADC Map 32 F-9

PAT0347

Old Court Road 39 19.908 76 52.197

Woodstock/Old Court Road Crossing. Bank sample under bridge from RR track side.

HERBERT RUN

EBH0005

Herbert Run 39 13.877 76 41.527

Route 1 – heading north on Route 1 (Southwestern Boulevard) Crossing. Try flow upstream - you may have electrical interference.

STONY RUN

SXR0002

Stony Run 39 12.730 76 41.698

Furnace Avenue Crossing. Try to take flow – may have electrical interference. Anne Arundel ADC Map 1 J-6

DEEP RUN

DXC0004

Deep Run 39 12.651 76 42.124

Furnace Avenue Crossing Anne Arundel ADC Map 1 J-6

DOGWOOD RUN

DGW0002

Dogwood Run 39 18.931 76 47.599

Dogwood Road Crossing Baltimore ADC Map 32 F-8

BRICE’S RUN

BCN0003

Brice’s Run 39 19.350 76 49.461

Wrights Mill Road Crossing Baltimore ADC Map 32 A-7

NORTH BRANCH PATAPSCO

NPA0026

Marriotsville Rd

39 21.879 76 53.104

Marriotsville Road Crossing Baltimore ADC Map 23 B-12


Liberty Reservoir

Liberty Reservoir Monitoring Stations



Liberty Reservoir (main) High Flow Conditions (December-May)


Chlorophyll a

0

3

6

9

12Li

bert

y R

.H

20 In

take

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

nr.

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver

NPA0038NPA0059NPA0071NPA0085NPA0101NPA0116NPA0130NPA0155NPA0164

µg

/lite

r

Dissolved Oxygen

0

4

8

12

16

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

nr.

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r


0

3

6

9

12

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

nr.

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r


0

0.7

1.4

2.1

2.8

Libe

rty

R.

H20

Inta

keLi

bert

y R

.B

ridge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Poi

ntLi

bert

yR

eser

voir

1Li

bert

yR

eser

voir

2Li

bert

y R

.nr

.C

ross

ing

Libe

rty

Res

ervo

ir3

Libe

rty

R.

Bea

ver

Run


mg

/lite

r

012345

Liberty R. H20 Intake Liberty R. Bridge Liberty R. nr Cove Liberty R. nr OM Point Liberty Reservoir 1 Liberty Reservoir 2 Liberty R. nr. Crossing Liberty Reservoir 3 Liberty R. Beaver Run

NPA0038 NPA0059 NPA0071 NPA0085 NPA0101 NPA0116 NPA0130 NPA0155 NPA016403/1

4/20

00

04/1

1/20

00

05/0

9/20

00


Liberty Reservoir (main) High Flow Conditions (December-May)



01.22.43.64.8

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

nr.

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r


0

0.00055

0.0011

0.00165

0.0022

Libe

rty

R.

H20

Inta

keLi

bert

y R

.B

ridge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Poi

ntLi

bert

yR

eser

voir

1Li

bert

yR

eser

voir

2Li

bert

y R

.nr

.C

ross

ing

Libe

rty

Res

ervo

ir3

Libe

rty

R.

Bea

ver

Run


mg

/lite

r

Total Nitrogen

0

1.2

2.4

3.6

4.8

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

nr.

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r

Total Phosphorus

0

0.3

0.6

0.9

1.2

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

nr.

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver

NPA0038NPA0059NPA0071NPA0085NPA0101NPA0116NPA0130NPA0155NPA0164m

g/li

ter

012345

Liberty R. H20 Intake Liberty R. Bridge Liberty R. nr Cove Liberty R. nr OM Point Liberty Reservoir 1 Liberty Reservoir 2 Liberty R. nr. Crossing Liberty Reservoir 3 Liberty R. Beaver Run

NPA0038 NPA0059 NPA0071 NPA0085 NPA0101 NPA0116 NPA0130 NPA0155 NPA016403/1

4/20

00

04/1

1/20

00

05/0

9/20

00


Liberty Reservoir (main) Low Flow Conditions (June to November)


Chlorophyll a

010203040

Libe

rty

R.

H20

Inta

keLi

bert

y R

.B

ridge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Poi

ntLi

bert

yR

eser

voir

1Li

bert

yR

eser

voir

2Li

bert

yR

eser

voir

nrLi

bert

yR

eser

voir

3Li

bert

y R

.B

eave

rR

un


µg/li

ter

Dissolved Oxygen

0369

12

Libe

rty

R.

H20

Inta

keLi

bert

y R

.B

ridge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Poi

ntLi

bert

yR

eser

voir

1Li

bert

yR

eser

voir

2Li

bert

yR

eser

voir

nrLi

bert

yR

eser

voir

3Li

bert

y R

.B

eave

rR

un


mg

/lite

r


0

3

6

9

12

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r


0

1

2

3

4

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r

0

2

Liberty R. H20 Intake Liberty R. Bridge Liberty R. nr Cove Liberty R. nr OM Point Liberty Reservoir 1 Liberty Reservoir 2 Liberty Reservoir nr Crossing Liberty Reservoir 3 Liberty R. Beaver Run07/2

5/20

00

08/0

8/20

00

08/0

8/20

00


Liberty Reservoir (main) Low Flow Conditions (June to November)



0

0.551.1

1.65

2.2Li

bert

y R

.H

20 In

take

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r


0

0.0010.002

0.003

0.004

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r

Total Nitrogen

0

0.8

1.6

2.4

3.2

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver


mg

/lite

r

Total Phosphorus

0

0.3

0.6

0.9

1.2

Libe

rty

R.

H20

Inta

ke

Libe

rty

R.

Brid

ge

Libe

rty

R.

nr C

ove

Libe

rty

R.

nr

OM

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rtyR

eser

voir

Libe

rty

R.

Bea

ver

NPA0038NPA0059NPA0071NPA0085NPA0101NPA0116NPA0130NPA0155NPA0164m

g/li

ter

0

2

Liberty R. H20 Intake Liberty R. Bridge Liberty R. nr Cove Liberty R. nr OM Point Liberty Reservoir 1 Liberty Reservoir 2 Liberty Reservoir nr Crossing Liberty Reservoir 3 Liberty R. Beaver Run07/2

5/20

00

08/0

8/20

00

08/0

8/20

00


Liberty Reservoir (tributaries) High Flow Conditions (December-May)


Chlorophyll a

03

58

10S

now

den

Run Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004LMR0015MOR0040MDE0026BEA0016NPA0167UZP0002

µg

/lite

r

Dissolved Oxygen

048

1216

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015 MOR0040MDE0026 BEA0016 NPA0167 UZP0002

mg

/lite

r


0

15

30

45

60

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004LMR0015MOR0040MDE0026BEA0016NPA0167 UZP0002

mg

/lite

r


0.0

1.0

2.0

3.0

4.0

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015 MOR0040 MDE0026 BEA0016 NPA0167 UZP0002

mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900

Snowden Run Little Morgan Run Morgan Run Middle Branch Beaver Run North Branch Patapsco Bond Run

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

4/20

00

04/1

1/20

00

05/0

9/20

00

05/2

4/20

00


Liberty Reservoir (tributaries) High Flow Conditions (December-May)



0

2

3

5

6

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004LMR0015MOR0040MDE0026BEA0016 NPA0167UZP0002

mg

/lite

r


0.000

0.008

0.016

0.024

0.032

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un


mg

/lite

r

Total Nitrogen

0.01.5

3.04.5

6.0

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un


mg

/lite

r

Total Phosphorus

0.0

0.3

0.6

0.9

1.2

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

4/20

00

04/1

1/20

00

05/0

9/20

00

05/2

4/20

00


Liberty Reservoir (tributaries) Low Flow Conditions (June to November)


Chlorophyll a

0.0

0.8

1.6

2.4

3.2S

now

den

Run Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015MOR0040MDE0026BEA0016 NPA0167 UZP0002

µg

/lite

r

Dissolved Oxygen

0

4

8

12

16

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un


mg

/lite

r


0

5

10

15

20

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015MOR0040 MDE0026BEA0016 NPA0167 UZP0002

mg

/lite

r


0.0

0.8

1.6

2.4

3.2

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004LMR0015MOR0040MDE0026BEA0016NPA0167UZP0002m

g/li

ter

01/00/1900

01/01/1900

01/02/1900

01/03/1900


06/2

0/20

00

07/2

5/20

00

08/0

8/20

00

09/0

6/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Liberty Reservoir (tributaries) Low Flow Conditions (June to November)



0

2

3

5

6S

now

den

Run Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015MOR0040MDE0026 BEA0016 NPA0167 UZP0002

mg

/lite

r

Dissolved Inorganic Phorsphorus

0.000

0.003

0.006

0.009

0.012

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un


mg

/lite

r

Total Nitrogen

0

2

3

5

6

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015 MOR0040 MDE0026 BEA0016 NPA0167 UZP0002

mg

/lite

r

Total Phosphorus

0.0

0.3

0.6

0.9

1.2

Sno

wde

nR

un Littl

eM

orga

nR

un

Mor

gan

Run

Mid

dle

Bra

nch

Bea

ver

Run

Nor

thB

ranc

hP

atap

sco

Bon

d R

un

UOL0004 LMR0015MOR0040MDE0026BEA0016NPA0167 UZP0002

mg

/lite

r

01/00/1900

01/01/1900

01/02/1900

01/03/1900


06/2

0/20

00

07/2

5/20

00

08/0

8/20

00

09/0

6/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


LIBERTY RESERVOIR STATION LIST

Station Code Station Name Lat/Long Description

LIBERTY RESERVIOR

NPA0038

Liberty R. H20 Intake

39 22.821 76 53.535

Center reservoir near drinking water intake 114 ft.

NPA0059

Liberty R. Bridge 39 23.808 76 53.129

Center reservoir route 26 bridge crossing 85 ft.

NPA0071

Liberty R. nr Cove 39 24.522 76 53.005

Center reservoir just northwest of Locust Run Cove 90 ft.

NPA0085

Liberty R. nr OM Point

39 25.208 76 52.679

Center reservoir Northeast of Oakland Mill Point 85 ft.

NPA0101

Liberty Reservoir 1 39 25.714 76 53.814

Center reservoir after bend 70 ft.

NPA0116


Center reservoir after second sharp bend just starting to turn back north. 56 ft.

NPA0130

Liberty Reservoir nr Crossing

39 26.930 76 52.666

Center reservoir Deer Park Road crossing 48 ft.

NPA0155


Center reservoir on sharp bend 24 ft.

NPA0164

Liberty R. Beaver Run

39 28.170 76 53.227

Center reservoir confluence of Beaver Run and North Branch Patapsco.

SNOWDEN RUN

UOL0004

Snowden Run 39 24.506 76 54.814

Snowdens Run Road crossing. Good parking near some type of pumping station looking building.

LITTLE MORGAN RUN

LMR0015

Little Morgan Run 39 25.524 76 57.638

Bartholow Road Crossing. Staff gage. Take flow and read staff. ADC Carroll County MAP 30 B-5

MORGAN RUN

MOR0040

Morgan Run USGS

39 27.142 76 57.310

London Bridge Road crossing. USGS Gage. ADC Carroll County MAP 30 C-1

MIDDLE BRANCH

MDE0026

Middle Branch 39 27.754 76 54.454

Louisville Road crossing. Good parking and access. Flow site. ADC Carroll County MAP 30 J-1

BEAVER RUN

BEA0016

Beaver Run USGS 39 29.359 76 54.212

Hughes Road crossing. USGS Gage. ADC Carroll County MAP 26 A-7


NORTH BRANCH PATAPSCO

NPA0165

No. Br. Patapsco 39 30.032 76 53.000

Take Industrial Park Drive (off Rte 91) – sample off foot bridge in Congoleum plant. Check in at office.

BOND RUN

UZP0002

Bond Run USGS 39 29.783 76 52.203

Hollingsworth Road Crossing. Old USGS gage house. Good access and flow site.


South Branch Patapsco River

South Branch Patapsco Monitoring Stations



South Branch Patapsco River High Flow Conditions (December-May)


Chlorophyll a

0

5

10

15

20W

hite

Roc

kR

d 2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd

VAA0002PIR0083PIR0078PIR0070PIR0064PIR0056PIR0002SBP0013SBP0149

µg/li

ter

Dissolved Oxygen

0

5

10

15

20

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r


0

60

120

180

240

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r


0

1

2

3

4

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r D

am

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r

0

2

4

6

8

White Rock Rd 2 White Rock Rd 1 Restricted Area Large Cove Near Dam Route 32 Marriottsvi l le Rd 1 Marriottsvi l le Rd 2 Watersvi l le Rd

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

3/20

00

04/1

0/20

00

05/0

8/20

00

05/2

4/20

00


South Branch Patapsco River High Flow Conditions (December-May)



024

68

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r


00.040.080.120.16

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r

Total Nitrogen

02468

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r

Total Phosphorus

00.3

0.60.9

1.2

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r D

am

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r

0

2

4

6

8

White Rock Rd 2 White Rock Rd 1 Restricted Area Large Cove Near Dam Route 32 Marriottsvi l le Rd 1 Marriottsvi l le Rd 2 Watersvi l le Rd

12/1

4/19

99

01/1

1/20

00

01/2

4/20

00

02/2

3/20

00

02/2

9/20

00

03/1

3/20

00

04/1

0/20

00

05/0

8/20

00

05/2

4/20

00


Patapsco River Lower North Branch Low Flow Conditions (June to November)


Chlorophyll a

05

101520

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r D

am

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


µg

/lite

rDissolved Oxygen

048

1216

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r D

am

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r


020406080

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r


01.22.43.64.8

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd

VAA0002PIR0083PIR0078PIR0070PIR0064PIR0056PIR0002SBP0013SBP0149m

g/li

ter

01/00/190001/02/190001/04/190001/06/1900

01/08/190001/10/190001/12/1900



06/2

0/20

00

08/0

9/20

00

09/0

7/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


Patapsco River Lower North Branch Low Flow Conditions (June to November)



01.5

34.5

6W

hite

Roc

kR

d 2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r


00.040.080.120.16

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r

Total Nitrogen

02468

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r D

am

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd


mg

/lite

r

Total Phosphorus

00.30.60.91.2

Whi

te R

ock

Rd

2

Whi

te R

ock

Rd

1

Res

tric

ted

Are

a

Larg

e C

ove

Nea

r Dam

Rou

te 3

2

Mar

riotts

ville

Rd

1

Mar

riotts

ville

Rd

2

Wat

ersv

ille

Rd

VAA0002PIR0083PIR0078PIR0070PIR0064PIR0056PIR0002SBP0013SBP0149m

g/li

ter

01/00/190001/02/190001/04/190001/06/1900

01/08/190001/10/190001/12/1900



06/2

0/20

00

08/0

9/20

00

09/0

7/20

00

10/1

3/19

99

10/2

6/19

99

11/1

6/19

99

11/3

0/19

99


SOUTH BRANCH PATAPSCO STATION LIST Station Code


PINEY RUN RESERVIOR

PIR0078

Restricted Area

39 24.383 76 59.416

At line of restricted area. Area maybe floats across this area. Use GPS and take descriptions.

PIR0070

Large Cove 39 23.850 76 59.000

Mid-reservoir. Down reservoir from boat ramps on right and large cove on left when facing down reservoir.

PIR0064

Near Dam 39 23.300 76 58.600

Mid-reservoir near dam across from cove on left when facing the dam.

PINEY RUN RESERVIOR INPUTS

PIR0002

Marriottsville Rd. 1

39 21.186 76 53.818

Marriottsville Road Crossing, flow site upstream. ADC Carroll County MAP 36 A-6

PIR0056

Route 32 39 22.925 76 58.015

Route 32 Road crossing, flow site. ADC Carroll County MAP 30 A-13

PIR0083

White Rock Rd. 1

39 24.287 76 59.849

White Rock Road crossing, flow site upstream. ADC Carroll County MAP 29 G-9

VAA0002

White Rock Rd. 2

39 24.568 76 59.610

White Rock Road crossing, flow site. ADC Carroll County MAP 29 G-8

SOUTH BRANCH PATAPSCO

SBP0013

Marriottsville Rd. 2

39 21.084 76 53.902

Marriottsville Road Crossing, flow site if possible. ADC Carroll County MAP A-6

SBP0149

Watersville Rd.

39 22.078 77 06.242

Watersville Road crossing, flow site upstream. ADC Carroll County MAP 33 A-3


West Chesapeake Bay Watershed

Magothy River

Severn River

South River

West River


WEST CHESAPEAKE AREA (Sub-basin 02-13-10)

General Description (from 1998, 305 (b) Report) The West Chesapeake sub-basin drains 267 square miles of Anne Arundel County and portions of Calvert County on the Western Shore of the Chesapeake Bay. The entire sub-basin lies in the Coastal Plain Province. In many areas near tidal waters, the hill-terrain forms cliffs along the shoreline. Large water bodies include Lake Waterford and the Magothy, Severn, South, West, and Rhode Rivers. Most land in the West Chesapeake sub-basin is forested (49 percent), however, 34 percent of the drainage land area is developed. Less than 16 percent of the drainage is agricultural land. The only city in the sub-basin is Annapolis but other communities include Pasadena, Severna Park, Edgewater, Highland Beach, and Chesapeake Beach. Surface waters are classified as Use I (water contact recreation and aquatic life), Use II (shellfish harvesting) or, in some free-flowing areas of Severn River, Use III (natural trout) or Use IV (put-and-take trout) (COMAR '26.08.02.08K). For the most recent information regarding specific use classes in this watershed, the reader is referred to the Code of Maryland Regulations. The Severn River was identified as one of the State's Scenic Rivers; this designation is designed to preserve and protect the rivers natural values. One stream (Jabez Branch) supports a natural brook trout population for a total of 0.5 miles of stream length. The State routinely monitors water quality at five Bay Tributary stations. One fixed Long Term Benthic Macroinvertebrate program station is monitored for estuarine benthos in addition to randomly selected Long Term Benthic Macroinvertebrate program sites. The Maryland Biological Stream Survey (MBSS) collected water quality samples at 45 stations in 1994 and at 32 stations in 1997. In addition, water quality data are available from MDE's shellfish sanitation program for most tidal areas. Water Quality Summary The Magothy (02131001), Severn (02131002), South (02131003), and West Rivers (02131004), will be addressed by a cooperative effort by the Bay States with the EPA Chesapeake Bay Program taking the lead.


Magothy River

Magothy River Monitoring Stations



Magothy River High Flow Conditions (December-May)


Chlorophyll a

0

2550

75

100R

iver

Mou

th

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing

XHF3634 XHF4119 XHF5229 XHE4598 XHE5185 XHE6675MAG0080

µg/li

ter

Dissolved Oxygen

048

1216

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r


0

20

40

60

80

Riv

erM

outh

Eas

t of

Fla

shin

g

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing

XHF3634 XHF4119 XHF5229 XHE4598XHE5185 XHE6675MAG0080

mg

/lite

r


0

3

6

9

12

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing

XHF3634 XHF4119 XHF5229 XHE4598 XHE5185 XHE6675MAG0080m

g/li

ter

0

0

0

0.01

0.01

River Mouth East of Flashing Sillery Bay Ferry Pt Creeks Confluence Magothy Rd Bridge Catherine Ave Crossing

XHF3634 XHF4119 XHF5229 XHE4598 XHE5185 XHE6675 MAG0080

12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/28/2000 05/17/2000 05/23/2000


Magothy River High Flow Conditions (December-May)



00.5

11.5

2R

iver

Mou

th

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r


00.0020.0040.0060.008

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing

XHF3634XHF4119XHF5229XHE4598XHE5185XHE6675MAG0080

mg

/lter

Total Nitrogen

0

0.8

1.6

2.4

3.2

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r

Total Phosphorus

0

0.03

0.06

0.09

0.12

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r

0

0

0

0.01

0.01

River Mouth East of Flashing Sillery Bay Ferry Pt Creeks Confluence Magothy Rd Bridge Catherine Ave Crossing

XHF3634 XHF4119 XHF5229 XHE4598 XHE5185 XHE6675 MAG0080

12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/28/2000 05/17/2000 05/23/2000


Magothy River Low Flow Conditions (June to November)


Chlorophyll a

0

20

40

60

80R

iver

Mou

th

Eas

t of

Fla

shin

g

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


µg/li

ter

Dissolved Oxygen

0

3

6

9

12

Riv

erM

outh

Eas

t of

Fla

shin

g

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r


0

10

20

30

40

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r


0

5

10

15

20

Riv

erM

outh

Eas

t of

Fla

shin

g

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing

XHF3634XHF4119XHF5229XHE4598XHE5185XHE6675MAG0080m

g/li

ter

00.050.1

0.15

Rt. 450 Rt. 50 East of Flashing G "5" Round Bay Cedar Point Indian Landing Rd Dicus Road

XGF9708 XHE0497 XHE1982 XHE2362 XHE3659 XHE4737 SER0011

06/05/2000 07/19/2000 08/16/2000 09/20/2000 10/12/1999 10/25/1999

11/15/1999 11/29/1999


Magothy River Low Flow Conditions (June to November)



0

0.5

1

1.5

2R

iver

Mou

th

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r


0

0.004

0.008

0.012

0.016

Riv

erM

outh

Eas

t of

Fla

shin

g

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r

Total Nitrogen

0

0.8

1.6

2.4

3.2

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing


mg

/lite

r

Total Phosphorus

0

0.03

0.06

0.09

0.12

Riv

er M

outh

Eas

t of

Flas

hing

Sill

ery

Bay

Fer

ry P

t

Cre

eks

Con

fluen

ce

Mag

othy

Rd

Brid

ge

Cat

herin

eA

veC

ross

ing

XHF3634 XHF4119 XHF5229 XHE4598XHE5185 XHE6675MAG0080

mg

/lite

r

00.050.1

0.15



06/05/2000 07/19/2000 08/16/2000 09/20/2000 10/12/1999 10/25/1999

11/15/1999 11/29/1999


MAGOTHY RIVER STATION LIST

Station Code

Station Name Lat/Long Description

MAGOTHY RIVER

XHF3634

River Mouth

39 03.586 76 26.611

Mid-channel, inside mouth. 15 ft.

XHF4119

East of Flashing

39 04.094 76 28.129

East of flashing G”9”. 13 ft.

XHE4598

Ferry Pt.

39 04.501 76 30.189

Mid-channel between R”12” and G”11” between North Ferry Pt and South Ferry Pt.

XHE5185

Creeks Confluence

39 05.147 76 31.450

Confluence of Cattail Creek and Corkey Creek near DM “MR”. 15 ft.

XHE6675

Magothy Road Bridge

39 06.606 76 32.506

Bridge crossing on Magothy Road.

MAG0080

Catherine Ave. Crossing

39 06.942 76 32.990

Catherine Avenue crossing.

SILLERY BAY

XHF5229

39 05.202 76 27.061

Southeast of Hickory Pt. 12 Ft.


Severn River

Severn River Monitoring Stations

Map Prepared by the Maryland Department of the Environment Technical and Regulatory Services Administration Montgomery Park Business Center 1800 Washington Boulevard, Suite 540 Baltimore, Maryland 21230-1718


Severn River High Flow Conditions (December-May)


Chlorophyll a

0

200400

600

800G

reen

bury

Pt

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad

XGF7729XGF9708XHE0497XHE1982XHE2362XHE3659XHE4737SER0011

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Fla

shin

gG

"5"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r


0

50

100

150

200

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r


0

8

16

24

32

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

0

0.2

0.4

0.6

0.8



12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/28/2000 05/17/2000 05/23/2000


Severn River High Flow Conditions (December-May)



0

0.4

0.8

1.2

1.6G

reen

bury

Pt

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r


0

0.020.04

0.06

0.08

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

Total Nitrogen

0

3

6

9

12

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

Total Phosphorus

0

0.2

0.4

0.6

0.8

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Fla

shin

gG

"5"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lter

0

0.2

0.4

0.6

0.8



12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/28/2000 05/17/2000 05/23/2000


Severn River Low Flow Conditions (June to November)


Chlorophyll a

0

15

30

45

60G

reen

bury

Pt

Rt.

450

Rt.

50

Eas

t of

Fla

shin

gG

"5"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


µg/li

ter

Dissolved Oxygen

0

3

6

9

12

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r


0

10

20

30

40

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Fla

shin

gG

"5"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r


0

3

6

9

12

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

00.050.1

0.15



06/05/2000 07/19/2000 08/16/2000 09/20/2000 10/12/1999 10/25/1999

11/15/1999 11/29/1999


Severn River Low Flow Conditions (June to November)



00.40.81.21.6

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"R

ound

Bay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r


0

0.012

0.024

0.036

0.048

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

Total Nitrogen

0

0.5

1

1.5

2

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

Total Phosphorus

0

0.04

0.08

0.12

0.16

Gre

enbu

ryP

t

Rt.

450

Rt.

50

Eas

t of

Flas

hing

G"5

"

Rou

ndB

ay

Ced

arP

oint

Indi

anLa

ndin

gR

d

Dic

usR

oad


mg

/lite

r

00.050.1

0.15



06/05/2000 07/19/2000 08/16/2000 09/20/2000 10/12/1999 10/25/1999

11/15/1999 11/29/1999


SEVERN RIVER STATION LIST Station Code


SEVERN RIVER

XGF7729

Greenbury Pt. 38 57.684 76 27.077

1500 yds south of Greenbury Pt. Depth ~ 20 ft.

XGF9708

Rte 450 38 59.653 76 29.185

Near old Rte 450 bridge.

XHE0497

Rt. 50 39 00.417 76 30.265

Just northwest of Rt. 50 bridge off A-frame house. 35 Ft.

XHE1982

East of flashing G

“5”.

39 01.854 76 31.835

East of flashing G “5”. 35 FT.

XHE3659

Cedar point 39 03.649 76 34.050

Southwest of Cedar point and southwest of flashing R “12”. 20 FT.

XHE4737

Indian Landing Rd

39 04.667 76 36.309

Arlington Echo Education Center. At end of Indian Landing Rd, veer right. Park in lot and walk down road and hill to get dock sample. Long walk.

SER0011

Dicus Road 39 05.109 76 37.993

Dicus Road crossing. Take flow upstream.

ROUND BAY

XHE2362

39 02.292 76 33.778

Southeast end of St. Helena island and east of R “2”. 20 FT.


South River

South River Monitoring Stations



South River High Flow Conditions (December-May)


Chlorophyll a

0

25

50

75

100M

id-

Cha

nnel

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h

XGF4805 XGE5790 XGE6972 XGE7456 XGE7942 BRB0013 NTH0008

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r


0

15

30

45

60

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r


0

5

10

15

20

Mid

-C

hann

el

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r

00.050.1

0.150.2

Mid-Channel Flashing R Shadow Point Riva Road Calibration Station Bacon Ridge Branch North Branch


12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/27/2000 03/28/2000

05/16/2000 05/17/2000 05/23/2000


South River High Flow Conditions (December-May)



0

0.3

0.6

0.9

1.2M

id-

Cha

nnel

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h

XGF4805 XGE5790XGE6972 XGE7456 XGE7942BRB0013 NTH0008

mg

/lite

r


0

0.01

0.02

0.03

0.04

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h

XGF4805XGE5790XGE6972XGE7456XGE7942BRB0013NTH0008

mg

/lite

r

Total Nitrogen

0

0.5

1

1.5

2

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r

Total Phosphorus

0

0.05

0.1

0.15

0.2

Mid

-C

hann

el

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h

XGF4805XGE5790XGE6972XGE7456XGE7942BRB0013NTH0008

mg

/lite

r

00.050.1

0.150.2



12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/27/2000 03/28/2000

05/16/2000 05/17/2000 05/23/2000


South River Low Flow Conditions (June to November)


Chlorophyll a

0

15

30

45

60M

id-

Cha

nnel

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


µg

/lite

r

Dissolved Oxygen

0

3

6

9

12

Mid

-C

hann

el

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r


0

15

30

45

60

Mid

-C

hann

el

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r


0

2.5

5

7.5

10

Mid

-C

hann

el

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r

0

5

10



06/05/2000 07/18/2000 07/19/2000 08/15/2000 08/16/2000 09/19/2000

09/20/2000 10/12/1999 10/25/1999 11/15/1999 11/29/1999


South River Low Flow Conditions (June to November)



0

0.30.6

0.9

1.2M

id-

Cha

nnel

Fla

shin

g R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r


00.010.020.030.04

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r

Total Nitrogen

0

0.30.6

0.9

1.2

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h


mg

/lite

r

Total Phosphorus

00.040.080.120.16

Mid

-C

hann

el

Flas

hing

R

Sha

dow

Poi

nt

Riv

a R

oad

Cal

ibra

tion

Sta

tion

Bac

onR

idge

Bra

nch

Nor

thB

ranc

h

XGF4805 XGE5790 XGE6972 XGE7456 XGE7942 BRB0013 NTH0008m

g/lt

er

0

5

10



06/05/2000 07/18/2000 07/19/2000 08/15/2000 08/16/2000 09/19/2000

09/20/2000 10/12/1999 10/25/1999 11/15/1999 11/29/1999


SOUTH RIVER STATION LIST

Station Code


SOUTH RIVER

XGF4805 PS-16, 17

Mid-channel

38 54.783 76 29.412

Mid-channel between DM 5 & 6. Depth ~ 25 ft.

XGE5790 PS-18

Flashing R 38 55.756 76 31.027

South of Flashing R “10”. 10 FT.

XGE6972 PS-19

Shadow Point

38 56.931 76 32.781

South of Shadow Point near R “16”. 20 FT.

XGE7456 PS-20

Riva Rd 38 57.399 76 34.367

East of Riva Rd. bridge. 14 FT.

XGE7942 PS-21

Calibration Station

38 57.904 76 35.794

This calibration land station is collected by boat for high/low surveys. Use coords 38 57.896, 76 35.788 for GPS. 7 ft.

BACON RIDGE BRANCH

BRB0013 SM-16

Bacon Ridge Branch

39 00.081 76 36.898

Chesterfield Road crossing. Parking near old sludge mixing pumping station. Can take flow downstream

NORTH BRANCH

NTH0008 SM-15

North Branch

38 59.167 76 37.269

100 yds down from Rutland Road, going eastbound on Rt 450. Pull off on right.


West River

West River Monitoring Stations

Map Prepared by the Maryland Department of the Environment Science Services Adminis tration Montgomery Park Business Center 1800 Washington Boulevard, Suite 540 Baltimore, Maryland 21230-1718


West River High Flow Conditions (December-May)


Chloropyll a

0

40

80

120

160

XGE1694 XGE1281 XGE9974 XGE3383

Dutchman Point Flashing R CalibrationStation

Rhode River

µg

/lite

r

Dissolved Oxygen

0

4

8

12

16

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r


0

15

30

45

60

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r


0

4

8

12

16

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r

00.0050.01

0.015

XGE1694 XGE1281 XGE9974 XGE3383

Dutchman Point Flashing R Calibration Station Rhode River

12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/27/2000 05/23/2000


West River High Flow Conditions (December-May)



0

0.3

0.6

0.9

1.2

XGE1694 XGE1281 XGE9974 XGE3383

DutchmanPoint

Flashing R CalibrationStation

Rhode River

mg

/lite


0

0.004

0.008

0.012

0.016

XGE1694 XGE1281 XGE9974 XGE3383

DutchmanPoint

Flashing R CalibrationStation

Rhode River

mg

/lite

r

Total Nitrogen

0

0.5

1

1.5

2

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r

Total Phosphorus

0

0.04

0.08

0.12

0.16

XGE1694 XGE1281 XGE9974 XGE3383


Rhode Riverm

g/li

ter

00.0050.01

0.015

XGE1694 XGE1281 XGE9974 XGE3383


12/13/1999 01/12/2000 02/22/2000 02/28/2000 03/27/2000 05/16/2000 05/23/2000


West River Low Flow Conditions (June to November)


Chlorophyll a

0

20

40

60

80

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

µg/li

ter

Dissolved Oxygen

0

3

6

9

12

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r


0

12

24

36

48

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r


0

2

4

6

8

10

XGE1694 XGE1281 XGE9974 XGE3383


Rhode Riverm

g/li

ter

020406080

XGE1694 XGE1281 XGE9974 XGE3383


06/05/2000 07/18/2000 08/15/2000 09/19/2000 10/12/1999 10/25/1999

11/15/1999 11/29/1999


West River Low Flow Conditions (June to November)



0

0.3

0.6

0.9

1.2

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r


0

0.01

0.02

0.03

0.04

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r

Total Nitrogen

0

0.5

1

1.5

2

XGE1694 XGE1281 XGE9974 XGE3383


Rhode River

mg

/lite

r

Total Phosphorus

0

0.06

0.12

0.18

0.24

XGE1694 XGE1281 XGE9974 XGE3383


Rhode Riverm

g/li

ter

020406080

XGE1694 XGE1281 XGE9974 XGE3383


06/05/2000 07/18/2000 08/15/2000 09/19/2000 10/12/1999 10/25/1999

11/15/1999 11/29/1999


WEST RIVER STATION LIST Station Code

Station names Lat/Long Description

WEST RIVER

XGE1694

Dutchman Point

38 51.640 76 30.552

Mid-river, south of Dutchman Point. Depth ~13 ft.

XGE1281

flashing R 38 51.248 76 31.889

Southeast of flashing R “4”. 11 FT.

XGE9974

Calibration Station

38 49.905 76 32.564

This calibration land station is collected by boat for high/low surveys. Use coords 38 50.063, 76 32.583 for GPS. 6 ft.

RHODE RIVER

XGE3383 PS-23

Rhode River

38 53.273 76 31.721

This calibration land station is collected by boat for high/low surveys. Use coords 38 53.193, 76 31.784 for GPS. 10 ft. Near Camp Lett’s Dock.


Patuxent River Watershed

Patuxent River Middle

Western Branch

Patuxent River Upper

Little Patuxent River

Middle Patuxent

Rocky Gorge Dam

Brighton Dam


PATUXENT RIVER SUB-BASIN (Sub-basin 02-13-11)

General Description (from 1998, 305 (b) Report) The Patuxent River sub-basin drains about 900 square miles of St. Mary's, Calvert, Charles, Anne Arundel, Prince George's, Howard, and Montgomery Counties and a very small portion of Frederick County. The upper 25 percent of the sub-basin lies within the Piedmont Province, while the lower 75 percent lies within the Coastal Plain Province. Large water bodies include Western Branch, Little Patuxent River, Laurel Lake, Centennial Lake, Lake Elkhorn, Lake Kittamaqundi, Wilde Lake, and two large water supply reservoirs on the mainstem river above Laurel (T. Howard Duckett and Triadelphia Reservoirs) that supply water for Prince George's and Montgomery Counties in the Washington metropolitan area. Although the sub-basin is situated between the Washington and Baltimore metropolitan areas, much of the sub-basin remains forested (46 percent). Almost 30 percent of the land is agricultural and 24 percent is developed. The middle portion of the segment bordered by I-95 and Route 214 is the most heavily developed area in the sub-basin and includes the cities of Laurel and Bowie, the communities of Jessup and Savage and much of Fort Meade, a US Army installation. Other communities include the Town of Columbia in the upper Little Patuxent River and Upper Marlboro on the Western Branch. A number of communities dot the lower, tidal portion of the Patuxent River including Broomes and Solomons Islands. Surface waters are classified as Use I (water contact recreation and aquatic life), Use II (shellfish harvesting) or, above water supply intakes on the Patuxent and Little Patuxent Rivers, Use I-P (water contact recreation, aquatic life and public water supply), Use III-P (natural trout and public water supply) or Use IV-P (put-and-take trout and public water supply) (COMAR '26.08.02.08L). For the most recent information regarding specific use classes in this watershed, the reader is referred to the Code of Maryland Regulations. The Patuxent River is designated as one of the State's Scenic Rivers. This designation is designed to preserve and protect the natural values of the river. The Patuxent River restoration effort has become a symbol of pride and success to much more than the State. US Senator Barbara Mikulski (MD) won designation of the Patuxent River as a National Estuarine Demonstration Project, ensuring additional support for new research opportunities in watershed restoration. Jug Bay is designated as a component of the Chesapeake Bay National Estuarine Research Reserve in Maryland. A total of 241 acres of open water and 481 acres of adjoining wetlands and uplands (including Jug Bay Wetlands Sanctuary in Anne Arundel County and a portion of Patuxent River Park in Prince George's County) are protected for long-term estuarine research and monitoring and for estuarine education. The State routinely monitors water quality at three CORE/Trend stations in the upper watershed, at 11 stations throughout the mainstem estuary, and at two stations on Western Branch as part of the State's Patuxent Estuary Monitoring Program and the Bay Tributary Monitoring Program. In addition to chemical sampling, phytoplankton and microzooplankton (three stations) and mesozooplankton (three stations) communities are monitored. Samples for nutrient bioassays are taken at two stations. Four fixed Long Term Benthic Macroinvertebrate program stations are monitored for estuarine benthos in addition to 25 Long Term Benthic Macroinvertebrate program sites selected randomly each year. The Maryland Biological Stream Survey (MBSS) collected water quality samples at 41 stations in 1994 and


at 80 stations in 1997. Additional water quality data in the lower estuary is available through MDE's shellfish monitoring program. Water Quality Summary A TMDL to address the nutrient impairments to water quality in the Little Patuxent River (02131105) (Centennial Lake) received approval from EPA, April 24, 2002. The nutrient impairment in the Western Branch (02131103) was addressed by a BOD TMDL approved by EPA June 6, 2000. The Patuxent River Middle (02131102) will be addressed by a cooperative effort by the Bay States with the EPA Chesapeake Bay Program taking the lead. Water Quality Analyses were done indicating no nutrient impairments for the Patuxent River Upper (02131104) and the Middle Patuxent River (02131106), and received concurrence from EPA on February 2, 2007 and February 21, 2007 respectively. TMDLs to address the nutrient impairments in Rocky Gorge Dam (02131107); and Brighton Dam (02131108) are under development for 2007.


Upper, Lower Patuxent River and Western Branch Monitoring Stations

Upper, Lower Patuxent River and Western Branch Monitoring Stations



Patuxent River Middle, Upper and Western Branch High Flow Conditions (December-May)


Chlorophyll a

0

2

4

6

8

Iron PotLanding

below outfall Rt. 301 Route 3 Brock BridgeRoad

WXT0009 WXT0013 WXT0033 PXT0630 PXT0771

µg/li

ter

Dissolved Oxygen

0

3

6

9

12

Iron PotLanding

belowoutfall

Rt. 301 Route 3 BrockBridge Road


mg

/lite

r


0

4

8

12

16

Iron PotLanding



mg

/lite

r


0

2

4

6

8

Iron PotLanding

belowoutfall



mg

/lite

r

01/00/190001/00/1900

01/01/190001/01/190001/02/1900

Iron Pot Landing below outfall Rt. 301 Route 3 Brock Bridge Road


03/20/2000 03/27/2000 04/24/2000 05/15/2000 05/16/2000


Patuxent River Middle, Upper and Western Branch High Flow Conditions (December-May)



0.0

0.5

1.0

1.5

2.0

Iron PotLanding

belowoutfall



mg

/lite

r


0.00

0.03

0.05

0.08

0.10

Iron PotLanding



mg

/lite

r

Total Nitrogen

0.0

0.5

1.0

1.5

2.0

Iron PotLanding



mg

/lite

r

Total Phosphorus

0.00

0.04

0.08

0.12

0.16

Iron PotLanding



mg

/lite

r

01/00/190001/00/1900

01/01/190001/01/190001/02/1900



03/20/2000 03/27/2000 04/24/2000 05/15/2000 05/16/2000


Patuxent River Middle, Upper and Western Branch Low Flow Conditions (June to November)


Chlorophyll a

0

2

4

6

8

Iron PotLanding

belowoutfall



µg/li

ter

Dissolved Oxygen

0

3

6

9

12

Iron PotLanding

belowoutfall

Rt. 301 Route 3 BrockBridgeRoad


mg

/lite

r


0.0

0.8

1.6

2.4

3.2

Iron PotLanding



mg

/lite

r


0

8

16

24

32

Iron PotLanding

belowoutfall



mg

/lite

r

01/00/190001/02/190001/04/190001/06/190001/08/1900



07/17/2000 07/18/2000 08/14/2000 08/15/2000 09/18/2000 09/19/2000


Patuxent River Middle, Upper and Western Branch Low Flow Conditions (June to November)



0.0

0.5

1.0

1.5

2.0

Iron PotLanding

belowoutfall



mg

/lite

r


0.00

0.15

0.30

0.45

0.60

Iron PotLanding

belowoutfall



mg

/lite

r

Total Nitrogen

0.0

0.6

1.2

1.8

2.4

Iron PotLanding

belowoutfall



mg

/lite

r

Total Phosphorus

0.0

0.2

0.3

0.5

0.6

Iron PotLanding

belowoutfall



mg

/lite

r

01/00/190001/02/190001/04/190001/06/190001/08/1900



07/17/2000 07/18/2000 08/14/2000 08/15/2000 09/18/2000 09/19/2000


WESTERN BRANCH AND PATUXENT RIVER MIDDLE STATION LIST Station Code


WESTERN BRANCH

WXT0009

Iron Pot Landing

38 47.554 76 43.769

Iron Pot Landing. Near stream confluence and old duck blind. Approx. 3-4 ft.

WXT0013

Below outfall 38 47.806 76 43.436

¼ Mile below outfall. Approx. 3-4 ft.

WXT0033

Rt. 301 38 48.560 76 44.489

Bridge sample at Rt. 301.

UPPER PATUXENT RIVER STATION LIST

Station Code

Station Names


UPPER PATUXENT RIVER

PXT0630

Route 3 38 59.311 76 42.316

Route 3 bridge crossing.

PXT0771

Brock Bridge Road

39 04.321 76 50.302

Brock Bridge Road crossing.


Little Patuxent River

Little Patuxent River Monitoring Stations



Little Patuxent River (main) High Flow Conditions (December-May)


Chlorophyll a

02.5

57.510

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d

LXT0032 LXT0068 LXT0116 LXT0173 LXT0200 LXT0248 LXT0277

µg/li

ter

Dissolved Oxygen

048

1216

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d

LXT0032LXT0068LXT0116LXT0173LXT0200LXT0248LXT0277

mg

/lite

r


0306090

120

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d

LXT0032LXT0068LXT0116LXT0173LXT0200LXT0248LXT0277

mg

/lite

r


02468

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d

LXT0032LXT0068LXT0116LXT0173LXT0200LXT0248LXT0277m

g/li

ter

0

0.1

0.2

Conway Rd Patuxent Rd MD 198 Rt 1 USGS Guilford Rd USGS Merriweather Post Old Annapolis Rd

12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000

03/27/2000 04/24/2000 05/15/2000 05/16/2000 05/25/2000


Little Patuxent River (main) High Flow Conditions (December-May)



0

0.8

1.6

2.4

3.2C

onw

ay R

d

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d


mg

/lite

r

Dissolved Inorganic Phospohorus

00.020.04

0.060.08

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d

LXT0032LXT0068 LXT0116LXT0173LXT0200 LXT0248LXT0277

mg

/lite

r

Total Nitrogen

01234

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d


mg

/lite

r

Total Phosphorus

0

0.05

0.1

0.15

0.2

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d

LXT0032LXT0068LXT0116LXT0173 LXT0200 LXT0248LXT0277

mg

/lite

r

0

0.1

0.2


12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000

03/27/2000 04/24/2000 05/15/2000 05/16/2000 05/25/2000


Little Patuxent River (main) Low Flow Conditions (June to November)


Chlorphyll a

02468

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d


µg/li

ter

Dissolved Oxygen

048

1216

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d


mg

/lite

r


0

5

10

15

20

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d


mg

/lite

r


0

1

2

3

4

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d


mg

/lite

r

0

2

4

6

8


06/21/2000 07/17/2000 07/18/2000 08/14/2000 08/15/2000 09/18/2000 09/19/2000

10/14/1999 10/27/1999 11/17/1999


Little Patuxent River (main) Low Flow Conditions (June to November)



00.81.62.43.2

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d

LXT0032 LXT0068LXT0116 LXT0173 LXT0200LXT0248 LXT0277

mg

/lite

r


00.050.1

0.150.2

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

is R

d


mg

/lite

r

Total Nitrogen

0

1

2

3

4

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d


mg

/lite

r

Total Phosphorus

0

0.3

0.6

0.9

1.2

Con

way

Rd

Pat

uxen

t Rd

MD

198

Rt 1

US

GS

Gui

lford

Rd

US

GS

Mer

riwea

ther

Pos

t

Old

Ann

apol

isR

d


mg

/lite

r

0

2

4

6

8


06/21/2000 07/17/2000 07/18/2000 08/14/2000 08/15/2000 09/18/2000 09/19/2000

10/14/1999 10/27/1999 11/17/1999


Little Patuxent River (tributaries) High Flow Conditions (December-May)


Chloropyll a

0

4

8

12

16H

amm

onds

Run R

te 3

2

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane

HAM0006 DOR0020 DOR0032 UVC0003 DOR0048 ZAI0001 ZAI0012

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r


0

4

8

12

16

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r


0

2

4

6

8

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900

Hammonds Run Rte 32 Dorsey Run Rd Unnamed Trib Rte 1 Pavillion H. Rd Centennial Lane

12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000 03/27/2000

04/24/2000 05/15/2000 05/16/2000 05/25/2000


Little Patuxent River (tributaries) High Flow Conditions (December-May)



0

1

3

4

5

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r


0

0

1

1

2

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r

Total Nitrogen

0

2

3

5

6

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r

Total Phosphorus

0

1

1

2

2

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000

03/27/2000 04/24/2000 05/15/2000 05/16/2000 05/25/2000


Little Patuxent River (tributaries) Low Flow Conditions (June to November)


Chlorophyll a

0

5

10

15

20H

amm

onds

Run Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane

HAM0006DOR0020 DOR0032 UVC0003 DOR0048 ZAI0001 ZAI0012

µg/li

ter

Dissolved Oxygen

0

3

6

9

12

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane

HAM0006DOR0020DOR0032UVC0003DOR0048 ZAI0001 ZAI0012

mg

/lite

r


0255075

100

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane

HAM0006DOR0020DOR0032UVC0003DOR0048 ZAI0001 ZAI0012

mg

/lite

r


0

3

5

8

10

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane

HAM0006DOR0020DOR0032 UVC0003DOR0048 ZAI0001 ZAI0001m

g/li

ter

01/00/1900

01/02/1900

01/04/1900

01/06/1900


06/21/2000 07/17/2000 07/18/2000 08/14/2000 08/15/2000 09/18/2000 09/19/2000

10/14/1999 10/27/1999


Little Patuxent River (tributaries) Low Flow Conditions (June to November)



01245

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r


01122

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r

Total Nitrogen

0

1

2

4

5

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane


mg

/lite

r

Total Phosphorus

0

1

1

2

2

Ham

mon

dsR

un Rte

32

Dor

sey

Run

Rd

Unn

amed

Trib R

te 1

Pav

illio

n H

.R

d

Cen

tenn

ial

Lane

HAM0006 DOR0020 DOR0032 UVC0003 DOR0048 ZAI0001 ZAI0012m

g/li

ter

01/00/1900

01/02/1900

01/04/1900

01/06/1900


06/21/2000 07/17/2000 07/18/2000 08/14/2000 08/15/2000 09/18/2000

09/19/2000 10/14/1999 10/27/1999


LITTLE PATUXENT RIVER STATION LIST

Station Code


LITTLE PATUXENT RIVER

LXT0032

Conway Rd. 39 01.412 76 42.087

424 (Conway Road) bridge crossing.

LXT0068

Patuxent Rd. 39 03.554 76 43.912

Patuxent Road crossing.

LXT0116

MD 198 39 05.526 76 46.092

MD 198 crossing. Park in sandy lot. Bank sample above STP outfall.

LXT0173

Rt. 1 USGS 39 08.067 76 48.985

Southbound lane of Rte 1 crossing. USGS Gage across Rt. 1.

LXT0200

Guilford Rd. USGS

39 10.057 76 51.077

Guilford Road crossing. USGS Gage. Read staff.

LXT0248

Merriweather Post

39 12.555 76 51.359

Merriweather Post access road off southbound US 29 crossing, below Lake Kittamaquandi.

LXT0277

Old Annapolis Road

39 14.672 76 50.787

Old Annapolis Road

CENTENNIAL LAKE

ZAI0012

Centennial Lane

39 14.436 76 52.085

Centennial Lane bridge – sample on lake side.

ZAI0001

Pavillion H Road

39 14.443 76 51.157

Pavillion H Road, off of Woodland Road.

DORSEY RUN

DOR0020

Rte 32 39 07.960 76 46.801

Rte 32/ Guilford Road crossing. Bank sample between from least dangerous road.

DOR0032

Dorsey Run Rd.

39 08.971 76 47.201

Dorsey Run Road crossing. Take flow upstream, left side.

DOR0048

Rte 1 39 10.135 76 47.302

Rte 1 crossing (north crossing). Park in the Red Roof Inn driveway.

UNNAMED TRIB (of Dorsey Run)

UVC0003

Unnamed Trib

39 09.422 76 47.832

Rte 1 crossing (south crossing). Park on northbound side, sample from southbound side (deeper).

HAMMONDS RUN (tributary of Little Patuxent)

HAM0006

Hammonds Run

39 07.433 76 49.496

Rte 1 crossing. Bank sample from BG&E gravel drive.


Middle Patuxent River

Middle Patuxent River Monitoring Stations



Middle Patuxent River High Flow Conditions (December-May)


Chlorophyll a

0

1.5

3

4.5

6

Murry Hill Drive Harriet TubmanRoad

Bragdon Road Route 32

MXT0021 MXT0068 MXT0097 MXT0183

µg

/lite

r

Dissolved Oxygen

0

5

10

15

20



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r


0

10

20

30

40



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r


0

1

2

3

4



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

024

Murry Hill Drive Harriet Tubman Road Bragdon Road Route 32

MXT0021 MXT0068 MXT0097 MXT0183

12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 04/24/2000

05/15/2000 05/25/2000


Middle Patuxent River High Flow Conditions (December-May)



0

1

2

3

4



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r


0

0.008

0.016

0.024

0.032



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

Total Nitrogen

0

1

2

3

4



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

Total Phosphorus

0

0.03

0.06

0.09

0.12



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

024


MXT0021 MXT0068 MXT0097 MXT018312/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000 05/25/2000


Middle Patuxent River Low Flow Conditions (June to November)


Chlorophyll a

0

0.7

1.4

2.1

2.8



MXT0021 MXT0068 MXT0097 MXT0183

µg/li

ter

Dissolved Oxygen

0

4

8

12

16



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

Total Suspended Sediments

0

5

10

15

20



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r


0

0.8

1.6

2.4

3.2



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

00.51

1.5


MXT0021 MXT0068 MXT0097 MXT0183

06/21/2000 07/17/2000 08/14/2000 09/18/2000 10/14/1999 10/27/1999 11/17/1999


Middle Patuxent River Low Flow Conditions (June to November)



0

1

2

3

4



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r


0

0.008

0.016

0.024

0.032



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

Total Nitrogen

0

1

2

3

4



MXT0021 MXT0068 MXT0097 MXT0183

mg

/lite

r

Total Phosphorus

0

0.3

0.6

0.9

1.2



MXT0021 MXT0068 MXT0097 MXT0183m

g/li

ter

00.51

1.5


MXT0021 MXT0068 MXT0097 MXT018306/21/2000 07/17/2000 08/14/2000 09/18/2000 10/14/1999 10/27/1999 11/17/1999


MIDDLE PATUXENT STATION LIST Station Code


MIDDLE PATUXENT RIVER

MXT0021

Murry Hill Drive

39 09.609 76 51.128

Murry Hill Drive crossing.

MXT0068

Harriet Tubman

Road

39 11.246 76 53.586

Harriet Tubman Road foot bridge crossing off Cedar Lane.

MXT0097

Bragdon Road

39 13.743 76 55.039

Bragdon Road off Route 108 crossing, bank sample.

MXT0183

Route 32 39 17.231 76 57.522

Route 32, Middle Patuxent Bridge crossing.


Rocky Gorge Dam

Rocky Gorge Dam Monitoring Stations



Rocky Gorge Dam High Flow Conditions (December-May)


Chlorophyll a

0

5

10

15

20

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run

PXT0809 PXT0831 PXT0846PXT0860PXT0880PXT0971HAW0010

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run

PXT0809PXT0831PXT0846PXT0860PXT0880PXT0971HAW0010

mg

/lite

r


0

7

14

21

28

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run

PXT0809 PXT0831 PXT0846 PXT0860 PXT0880 PXT0971HAW0010

mg

/lite

r


0

1.2

2.4

3.6

4.8

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

0

0.02

0.04

0.06

Rocky Gorge Dam RGR Cove RGR 1 RGR Rock Crossing RGR 2 Brighton Dam Hawlings Run

12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000

04/24/2000 05/15/2000 05/25/2000


Rocky Gorge Dam High Flow Conditions (December-May)



0

1

2

3

4

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r


0

0.013

0.026

0.039

0.052

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

Total Nitrogen

0

1.2

2.4

3.6

4.8

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

Total Phosphorus

0

0.03

0.06

0.09

0.12

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

0

0.02

0.04

0.06


12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000

04/24/2000 05/15/2000 05/25/2000


Rocky Gorge Dam Low Flow Conditions (June to November)


Chlorophyll a

0

6

12

18

24

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run

PXT0809PXT0831PXT0846 PXT0860PXT0880PXT0971HAW0010

µg/li

ter

Dissolved Oxygen

0

3

6

9

12

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r


0

7

14

21

28

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run

PXT0809 PXT0831 PXT0846 PXT0860PXT0880PXT0971HAW0010

mg

/lite

r


0

1.5

3

4.5

6

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run

PXT0809 PXT0831 PXT0846 PXT0860PXT0880 PXT0971HAW0010

mg

/lite

r

0

1

2

3


06/21/2000 07/17/2000 08/14/2000 09/18/2000 10/14/1999 10/27/1999 11/17/1999


Rocky Gorge Dam Low Flow Conditions (June to November)



0

0.6

1.2

1.8

2.4R

ocky

Gor

geD

am RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r


0

0.004

0.008

0.012

0.016

Roc

kyG

orge

Dam RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

Total Nitrogen

0

0.7

1.4

2.1

2.8

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

Total Phosphorus

0

0.02

0.04

0.06

0.08

Roc

kyG

orge

Dam

RG

RC

ove

RG

R 1

RG

RR

ock

Cro

ssin

g

RG

R 2

Brig

hton

Dam

Haw

lings

Run


mg

/lite

r

0

1

2

3


06/21/2000 07/17/2000 08/14/2000 09/18/2000 10/14/1999 10/27/1999 11/17/1999


ROCKY GORGE RESERVIOR STATION LIST


ROCKY GORGE RESERVOIR

PXT0831

RGR Cove 39 07.395 76 52.826

Off 2nd cove above dam. 74 ft.

PXT0846

RGR 1 39 07.600 76 53.931

44 ft.

PXT0860

RGR Rock Crossing

39 07.939 76 55.146

Upstream of rock crossing.

PXT0880

RGR 2

39 07.769 76 56.791

16 ft.


PXT0809

Rocky Gorge Dam

39 06.934 76 52.404

Follow road to base of Rocky Gorge dam. Need card to access gate, read staff.

PXT0971

Brighton Dam 39 11.506 77 00.278

Brighton Dam at Brighton Dam. Take sample from handicap access ramp. See ranger for flow and gate access.

HAWLINGS RUN (tributary of Patuxent River)

HAW0010

Hawlings Run 39 10.501 77 01.279

Route 650 crossing. USGS Gage downstream side of bridge.


Brighton Dam

Brighton Dam Monitoring Stations



Brighton Dam High Flow Conditions (December-May)


Chlorophyll a

0

5

10

15

20

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr

PXT0977 ZTR0004 PXT0987 PXT1000 PXT1014 PXT0972 CTC0019

µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r


0

7

14

21

28

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r


0.0

1.3

2.6

3.9

5.2

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900

Tria Reservoir 45 ft Tria Reservoir 11.9 ft Tria Reservoir 35 ft Tria Reservoir 25 ft Tria Reservoir 11.5 ft Upper Patuxent R Cattail Cr

12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000 04/24/2000

05/15/2000 05/25/2000


Brighton Dam High Flow Conditions (December-May)



0.0

1.2

2.4

3.6

4.8

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r


0.00

0.02

0.03

0.05

0.06

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

Total Nitrogen

0.0

1.5

3.0

4.5

6.0

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

Total Phosphorus

0.00

0.03

0.06

0.09

0.12

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

01/00/1900

01/02/1900

01/04/1900

01/06/1900


12/01/1999 12/15/1999 01/13/2000 02/24/2000 03/01/2000 03/20/2000 04/24/2000

05/15/2000 05/25/2000


Brighton Dam Low Flow Conditions (June to November)


Chlorophyll a

0

10

20

30

40

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


µg/li

ter

Dissolved Oxygen

0

4

8

12

16

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r


0

8

16

24

32

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r


0

1.25

2.5

3.75

5

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

0

0.05

0.1



06/21/2000 07/17/2000 08/14/2000 09/18/2000 10/14/1999 10/27/1999 11/17/1999


Brighton Dam Low Flow Conditions (June to November)



0

1.5

3

4.5

6T

riaR

eser

voir

45 ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

Dissloved Inorganic Phosphorus

0

0.005

0.01

0.015

0.02

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

Total Nitrogen

0

1.5

3

4.5

6

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

Total Phosphorus

0

0.02

0.04

0.06

0.08

Tria

Res

ervo

ir45

ft

Tria

Res

ervo

ir11

.9 ft

Tria

Res

ervo

ir35

ft

Tria

Res

ervo

ir25

ft

Tria

Res

ervo

ir11

.5 ft

Upp

erP

atux

ent

R

Cat

tail

Cr


mg

/lite

r

0

0.05

0.1



06/21/2000 07/17/2000 08/14/2000 09/18/2000 10/14/1999 10/27/1999 11/17/1999


BRIGHTON DAM STATION LIST Station Code

Station Names


TRIADELPHIA RESERVOIR

PXT0977

Tri Reservoir 45 ft.

39 11.826 77 00.663

45 ft.

ZTR0004

Tri Reservoir 11.9 ft.

39 12.839 77 00.485

11.9 ft.

PXT0987


39 12.522 77 00.942

35 ft.

PXT1000


39 13.210 77 01.904

25 ft.

PXT1014

Tri Reservoir 11.5 ft.

39 14.174 77 02.619

11.5 ft.


PXT0972

Upper Patuxent River

39 14.291 77 03.363

MD 97/Georgia Avenue crossing.

CATTAIL CREEK

CTC0019

Cattail Creek 39 15.360 77 03.067

MD 97 bridge crossing. USGS Gage downstream side of bridge.

2000 data report gunpowder river, patapsco/back river west...

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