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Central Valley Dairy Representative Monitoring Program
2014 Monitoring Well Installation Completion Report
Central Area
Monitoring Well Installation Completion Report Central Valley Dairy Representative Monitoring Program
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Table of Contents Introduction ................................................................................................................................................... 2 Drilling and Monitoring Well Installation .................................................................................................... 4 Well Development, Wellhead Improvements and Survey ............................................................................ 5 References ..................................................................................................................................................... 6 Tables and Figure Table 1 Dairy Farms with Newly Installed Monitoring Wells Table 2 Construction Details of Monitoring Wells Installed in Fall 2014 Table 3 Summary of Selected Well Development Notes Figure 1 Location Map of Monitored RMP Dairies Attachments 1. Monitoring Well Location Maps 2. As-Built Well Profiles and Lithologic Logs 3. Driller’s Work Reports 4. Well Development Records – Del-Tech Geotechnical Support, Inc. 5. Wellhead Survey Report
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Introduction
This Monitoring Well Installation Completion Report (MWICR) has been prepared by Luhdorff and Scalmanini, Consulting Engineers (LSCE) on behalf of the Central Valley Dairy Representative Monitoring Program (CVDRMP) to satisfy requirements for the documentation of monitoring well installations set forth in Revised Monitoring and Reporting Program (CVRWQCB, 2011), which was reissued in Reissued General Order R5-2013-0122 (CVRWQCB, 2013). Specifically, the MWICR was prepared to document completion of the well installation project described in the 2014 Monitoring Well Installation and Sampling Plan – Central Area (LSCE, 2014b). The RMP undergoes continuous assessment as part of the data analysis and interpretation process and annually as part of the external review provided by the Groundwater Technical Advisory Committee and the Multidisciplinary Advisory Committee to identify critical data gaps (LSCE, 2012). Based on the review of monthly groundwater level information collected at Phase 1 RMP dairies1 between January 2012 and December 2013, the Central Valley Dairy Representative Monitoring Program Year 2 Annual Report (2013) (LSCE, 2014a) identified five dairies (Table 1) in the Central Area (Figure 1) where the utility of the existing RMP well networks can be improved with the installation of supplementary monitoring wells. In addition, GEN-MW4 was proposed to be properly destroyed without replacement2. Table 1: 2014 Well installations and destruction
Dairy County Location Scope of Work
MEN Stanislaus Crows Landing Construction of one nested monitoring facility with two wells in one borehole
BEA Merced Livingston Construction of two single-casing wells (§)
COT Merced Atwater Construction of one single-casing well
MAC Merced Los Banos Construction of one nested monitoring facility with two wells in one borehole
NUN Merced Los Banos
GEN Stanislaus Modesto Destruction of one well
§ The MWISP proposed installation of three wells. One well could not be installed due to the new owners’ construction plans to expand the animal housing area. Field work was concluded on January 12, 2015 with the last wellhead survey. The regulatory reporting deadline for this MWICR is 45 days after completion of field activities, i.e., February 26, 2015.
1 Phase 1 RMP dairies are those where groundwater data collection efforts commenced in January 2012. 2 This well is non-critical to the monitoring well network at this dairy.
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Figure 1: Location Map of Monitored CVDRMP Dairies.
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Drilling and Monitoring Well Installation
Wells were installed as proposed or with non-substantive modifications (e.g., change of the side of a road or intersection corner) with the exception of BEA-MW3dd. This well could not be installed due to the new owners’ plans to modify the animal housing area and expand the corrals. This facility was converted to a heifer ranch in early 2013. GEN-MW4 was destroyed as proposed. Drilling and construction services were provided by PeneCore Drilling, L.P. (State Contractor’s License C-57 No. 906899). The first monitoring well was installed on October 13, 2014, and the last monitoring well was installed on October 20, 2014. The wells were drilled and installed with a CME-75 rig. Eight-inch diameter test holes were drilled using the hollow stem auger method. The inside diameter of the 5-foot auger flights was 4.25 inches. Discrete samples were retrieved every 5 feet using ASTM D1586-11 “Standard Penetration Test and Split-Barrel Sampling of Soils” (however, blow counts were not recorded). ASTM describes this procedure to drive “a split-barrel sampler to obtain a representative disturbed soil sample for identification purposes, and measure the resistance of the soil to penetration of the sampler”. The split-barrel sampler has standardized outside and inside diameters of 2 and 1.5 inches, respectively. The chamber for soil collection was 18 inches in length. Therefore, the maximum core length was 18 inches. Cores of less than 18 inches length can occur in non-cohesive soils (i.e., the soil sample falls out of the open shoe while pulling the split-barrel out of the borehole), due to refusal (i.e., the sampler cannot be advanced 18 inches), or blockage (e.g., large rock fragments blocking the opening; or excessively high friction preventing the sample from sliding through the full length of the chamber). In addition to the retrieval of the split-barrel samples, drill cuttings were continuously observed as they surfaced from the rotation of the auger-column. Subsurface materials were sampled, described and logged in the field by LSCE geologists under the direct supervision of Till Angermann (California Professional Geologist 7789). Upon reaching target depth, samples were reviewed and the monitoring well designs were finalized. The 8-inch augers were retrieved and the test hole was reamed to 12 inches prior to the installation of nested wells at MEN and NUN. Twelve-inch augers were used in combination with 13.25-inch diameter drill bits. The drill bit was equipped with a wooden plug to prevent drill cuttings from entering the drill pipe at MEN. The inside diameter of the auger column was 8.25 inches. Prior to installation, well construction materials were laid out on a tarp next to the borehole, the auger plug was punched out (if applicable), and the casing was installed inside of the auger. At the nested wells, the shallow well casing was attached to the blank deep well casing by its end cap and just above the screen, using 4-inch lengths of 2-inch diameter PVC pipe and zip ties to ensure a minimum separation between the casings. The auger served as a tremie pipe for the annular materials such that the level of the annular material in the pipe was maintained above the bottom of the auger. Installation of well casing through the auger also ensures a minimum distance between the well casing and the borehole wall. After placement of the lower sand pack, a bentonite seal was placed, the upper sand pack was completed, the fine sand transition seal was placed, and then the neat cement surface seal was placed. In addition to the above, the monitoring wells share the following specifications:
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2-inch diameter Schedule 40 PVC ASTM F-480-88A threaded, blank casing (2.375 inch outside
diameter) 2-inch diameter Schedule 40 PVC ASTM F-480-88A threaded, screened casing (2.375 inch outer
diameter) with 0.030-inch slot size Threaded PVC end caps (with slot in the bottom to prevent stagnant water from collecting in the
cap) Sand pack # 8 sand (Silica Resources Industries) Bentonite chip seal between deep and shallow screen Fine sand transition seal between the top of the shallow screen and the surface seal Neat cement grout for surface seals Steel-reinforced (5 by 5 feet) concrete surface pads (12 inches thick, approximately 6 inches
below and 6 inches above ground) Vented PVC slip caps
The wells were completed with 8-inch diameter steel surface monuments equipped with steel lids and padlocks. Wellheads were protected with bollards (4-inch diameter steel pipe filled with concrete). Locations of the new monitoring wells are shown on site maps in Attachment 1. Monitoring well construction information is detailed in Table 2. Scaled as-built construction drawings and lithologic logs are provided in Attachment 2. The logs indicate the depth intervals where split-barrel samples were retrieved, the soil classification according to the Unified Soil Classification System (USCS), the Munsell color system, and additional description of subsurface materials. The logs identify lithologic changes observed within soil cores with solid horizontal lines. Lithologic changes between two soil cores are depicted with dashed lines. The driller’s daily work reports are provided in Attachment 3.
Well Development, Wellhead Improvements and Survey
Monitoring wells were initially developed by LSCE staff 2 to 10 days after installation using heavy bailers to identify potential problems with wells (such as the presence of cement grout in the well casing) and to remove settled sediment from the well bottoms. Following the initial development, Del-Tech Geotechnical Support, Inc. completed well development using stainless steel bailers, air lifting, surge blocks, submersible pumps, inertial and centrifugal pumps, as applicable. Chemicals were not used in the well development activities. Well development was concluded prior to the November 2014 monitoring campaign. The wells were developed until they produced water free of sand and with the goal to achieve turbidity values of 100 NTUs or less. As shown in Table 4, the turbidity goal proved too ambitious in some cases. This table provides a summary of well development information for the new monitoring wells. The table includes depth-to-water readings, amount of sediment and water removed from the well casings during Del-Tech’s development, and measurements of water quality indicator parameters during the polishing phase of the development when the wells were pumped at variable rates. Purged water was spread on the ground at a sufficient distance to avoid the potential for purge water to re-enter the well during the development. Del-Tech’s well development documentation is provided in Attachment 4.
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Wellhead surveys were conducted by EPIC Land Surveying, Inc. (Attachment 5). Field work was concluded on January 12, 2015 with the last wellhead survey.
References
Central Valley Regional Water Quality Control Board. 2007. Waste Discharge Requirements General Order No. R5-2007-0035 for Existing Milk Cow Dairies. May 3, 2007.
Central Valley Regional Water Quality Control Board. 2011. Revised Monitoring and Reporting Program General Order No. R5-2007-0035 for Existing Milk Cow Dairies. February 23, 2011.
Central Valley Regional Water Quality Control Board. 2013. Reissued Waste Discharge Requirements General Order No. R5-2013-0122 for Existing Milk Cow Dairies. October 3, 2013.
Luhdorff and Scalmanini, Consulting Engineers. 2012. Monitoring and Reporting Workplan and Monitoring Well Installation and Sampling Plan Phase 1: Initiation of Representative Groundwater Monitoring Network Design & Monitoring Program, Existing Milk Cow Dairies – Stanislaus and Merced Counties, California. Public Review Draft. Prepared for Central Valley Dairy Representative Monitoring Program. June 16, 2011. Finalized without changes January 11, 2012.
Luhdorff & Scalmanini Consulting Engineers. 2014a. Central Valley Dairy Representative Monitoring Program Year 2 Annual Report (2013). April 1, 2014, bound in six parts.
Luhdorff and Scalmanini, Consulting Engineers. 2014b. Central Valley Dairy Representative Monitoring Program – 2014 Monitoring Well Installation and Sampling Plan, Central Area. June 19, 2014.
Attachment 1
Monitoring Well Location Maps
Legend")1 Installed 1-Pipe Mo nito ring Well")2 Installed 2-Pipe Mo nito ring Well""1 Pre-Existing 1-Pipe Mo nito ring Well""2 Pre-Existing 2-Pipe Mo nito ring Well""3 Pre-Existing 3-Pipe Mo nito ring Well!(A Ag Well!(D Do m estic Well!( Unkno wn Type Well"ª Abando ned Well
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ED2 New 2-Pipe Mo nito ring WellDairy Pro ductio n AreaSo il Characteristic Units
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!P Stand Pipe"S TID Inlet
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"! Tank, Water Sto rage# Valve%9 Wastewater Mixing Po int
B Berm s/LeveesC Canal, Co ncreteC Canal, Earthen
CulvertD Ditch, Co ncreteD Ditch, Co ncrete - Co m m unityD Ditch, EarthenD Ditch, Earthen - Co m m unityR River o r Creek
Swale, DrainageSwale, Drainage - no n-m anureFlo w Directio n, Irrigatio n Flo wFlo w Directio n, Surface Drainage
H HH H H Flo w Directio n, Tailwater Flo w@ Pipeline, Fresh water@ Pipeline, Irrigatio n@ Pipeline, Tailwater@ Pipeline, Tailwater/Tile Drain@ Pipeline, Tile Drain@ Pipeline, WastewaterSetback/Ph ysical Barrier
Anim al Ho using/ShadeCalf BarnCalf Hutch esMilk BarnCo rralHay BarnCo m m o dity BarnSh ed/Sh o pOth er StructureFeed Sto rage (Ro o fed)Feed Sto rage (o n Co ncrete Slab)Feed Sto rage (o n Earth)FieldField, TiledEarthen Tailwater Po ndSto rm water Retentio n Po ndDry Scrape AlleyManure Stacking Area (o n Co ncrete Slab)Manure Stacking Area (o n Earth)So lids Settling BasinFlush LaneLiquid Manure Sto rageEarthen Stacking AreaEquipm ent Sto rageCo ncrete Pro cessing PitCo ncrete Sand TrapDigesterWeir Bo xWaterbo dy
Field Cro p Data o n “Dairy Pro ductio n Area and Asso ciated Fields” m ap series are sh o wn in black lettering o n m aps and o rganized as sh o wn belo w:
CROP | Lago o n Liquo r Applied (Y /N)? | So lid Manure Applied (Y /N)? | Synthetic Fertiliz er Applied (Y /N)? | Irrigatio n Depth (inches) | N applied (lbs/acre) | Dry Y ield (to ns/acre) | N Applicatio n/Rem o val Ratio
A – Alfalfa AH – Alfalfa Hay C – Co rn CE – Co rn Ears CS – Co rn Silage F – Winter Fo rage FA – Fallo w FM – Fo rage Mix G – Grapes L – Alm o nds O – Oats Silage So ft Do ugh OG – Oats Grain OH – Oats Hay P – Pasture S – Sudangrass SP – Sweet Po tato SS – Sudan Silage SO – So rghum T – Triticale W – Wheat Silage WH – Wheat
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Attachment 2
As-Built Well Profiles and Lithologic Logs
Lat./Long.:
LSCE Project No.
Well Name:
Drilled By:
Driller:
Site Geologist:
Graphic Log Well Profile As Built
Site:
Drilling Method:
Sampling Method:
Boring Depth (ft):Drilling/Installation Date: Well Depth (ft):
Central Valley Dairy Representative Monitoring Program
Well Screen (ft):
13-7-099
Penecore Drilling
Wesley Andrews
Color USCS
Split SpoonSampleInterval Lithologic Description
Hollow Stem Auger; pilot hole nominal 8"- diameter with 9.5" drill bit
reamed hole nominal 12"-diameter with 13.25" drill bit
MEN-MW8
Albert Mendes Dairy- 1100 Ruble Rd, Crows Landing, CA 95313, Stanislaus Co.
10/20/2014
31.5
Norman Dewberry
37.48417/-121.00940*
ASTM D1586-11 Split-Barrel Sampling
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*Measurement from Google Earth
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12" Dia. Borehole
Centralizer
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Gravel EnvelopeMonterey Sand #3(Typ.)
Screened Casing2" Dia. Sch. 40PVC ASTM F-480-88A Threadedw/ 0.030" SlotSize (Typ.)
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CL
SP
CL
CL
Silty Clay- low plastic, moist
Silty Clay- low plastic, moist to wet
Silty Clay- low plastic, wet
Sand- fine to medium, poorly graded, sub-rounded, wet
Silty Clay- medium plastic, w/ fine sand, wet
Lat./Long.:
LSCE Project No.
Well Name:
Drilled By:
Driller:
Site Geologist:
Graphic Log Well Profile As Built
Hollow Stem Auger; pilot hole nominal 8"- diameter with 9.5" drill bit
Site:
Drilling Method:
Sampling Method:
Boring Depth (ft):Drilling/Installation Date: Well Depth (ft):
Central Valley Dairy Representative Monitoring Program
Well Screen (ft):
13-7-099
Penecore Drilling
Wesley Andrews
10/13/2014 52
42-52
Color USCS
Split SpoonSampleInterval Lithologic Description
56.5
Norman Dewberry
Bear Creek Dairy- 15751 W. Highway 140, Livingston, CA 95334, Merced Co.
BEA-MW2dd
ASTM D1586-11 Split-Barrel Sampling
37.30427/-120.77092*
*Measurement from Google Earth
0
5
10
15
20
25
30
35
40
45
50
55
8" Dia. SteelCasing w/ LockingWell Cap
Neat Cement
Blank Casing 2"Dia. Sch. 40 PVCASTM F-480-88AThreaded (Typ.)
8" Dia. Borehole
Fine SandTransition Seal#30
Gravel EnvelopeMonterey Sand #3(Typ.)
Screened Casing2" Dia. Sch. 40PVC ASTM F-480-88A Threadedw/ 0.030" SlotSize (Typ.)
End cap (Typ.)
Native Fill
7.5 YR 5/2
7.5 YR 5/1
2.5 Y 7/1
7.5 YR 5/1
7.5 YR 5/1
7.5 YR 4/2
7.5 YR 6/1
7.5 YR 4/2
7.5 YR 4/2
7.5 YR 4/2
7.5 YR 4/2
CL
SM
SP
CL
CL
CL
SM
SP
SP
SP
SP
Silty Clay- medium plastic, dry
Sand- fine to medium, poorly graded, sub-rounded, w/ somesilt, moist
Sand- fine to medium, poorly graded, sub-rounded, dry
Clay- low plastic, moist
Clay- low plastic, dry
Clay- medium plastic, w/ fine to medium sand, moist
Silty Sand- very fine to fine, poorly graded, sub-rounded, ,moist
Sand- fine to medium, poorly graded, sub-rounded, moist towet
Sand- fine to medium, poorly graded, sub-rounded, wet
Lat./Long.:
LSCE Project No.
Well Name:
Drilled By:
Driller:
Site Geologist:
Graphic Log Well Profile As Built
Hollow Stem Auger; pilot hole nominal 8"- diameter with 9.5" drill bit
Site:
Drilling Method:
Sampling Method:
Boring Depth (ft):Drilling/Installation Date: Well Depth (ft):
Central Valley Dairy Representative Monitoring Program
Well Screen (ft):
13-7-099
Penecore Drilling
Wesley Andrews
Bear Creek Dairy- 15751 W. Highway 140, Livingston, CA 95334, Merced Co.
Color USCS
Split SpoonSampleInterval Lithologic Description
55
45-55
Norman Dewberry
56.5
10/13/14 - 10/14/14
BEA-MW1dd
ASTM D1586-11 Split-Barrel Sampling
37.30066/-120.77475*
*Measurement from Google Earth
0
5
10
15
20
25
30
35
40
45
50
55
60
8" Dia. SteelCasing w/ LockingWell Cap
Neat Cement
Blank Casing 2"Dia. Sch. 40 PVCASTM F-480-88AThreaded (Typ.)
8" Dia. Borehole
Fine SandTransition Seal#30
Gravel EnvelopeMonterey #3 Sand(Typ.)
Screened Casing2" Dia. Sch. 40PVC ASTM F-480-88A Threadedw/ 0.030" SlotSize (Typ.)
End cap (Typ.)
Native Fill
7.5 YR 5/3
10 YR 4/4
7.5 YR 3/3
7.5 YR 5/1
7.5 YR 4/3
7.5 YR 4/3
7.5 YR 4/3
7.5 YR 4/3
7.5 YR 4/3
7.5 YR 5/1
7.5 YR 5/1
SM
SP
CL
SP
SP
SP
SP
SP
SP
SP
SP
Sand- fine to medium, poorly graded, sub-rounded, w/ somesilt, moist
Sand- fine to medium, poorly graded, sub-rounded, moist
Clay- low plastic, damp
Sand- very fine to fine, moist
Sand- fine to medium, poorly graded, sub-rounded, w/ streaksof clay, moist
Sand- fine to medium, poorly graded, sub-rounded, moist
Sand- fine to medium, poorly graded, sub-rounded, moist towet
Sand- fine to medium, poorly graded, sub-rounded, wet
Lat./Long.:
LSCE Project No.
Well Name:
Drilled By:
Driller:
Site Geologist:
Graphic Log Well Profile As Built
Hollow Stem Auger; pilot hole nominal 8"- diameter with 9.5" drill bit
Site:
Drilling Method:
Sampling Method:
Boring Depth (ft):Drilling/Installation Date: Well Depth (ft):
Central Valley Dairy Representative Monitoring Program
Well Screen (ft):
13-7-099
Penecore Drilling
Wesley Andrews
Color USCS
Split SpoonSampleInterval Lithologic Description
Cottonwood Dairy- 10561 Highway 140, Atwater, CA 95301, Merced Co.
10/15/2014
51.5
50
35-50
Norman Dewberry
ASTM D1586-11 Split-Barrel Sampling
37.30071/-120.67264*
COT-MW1d
*Measurement from Google Earth
0
5
10
15
20
25
30
35
40
45
50
55
8" Dia. SteelCasing w/ LockingWell Cap
Neat Cement
Blank Casing 2"Dia. Sch. 40 PVCASTM F-480-88AThreaded (Typ.)
8" Dia. Borehole
Fine SandTransition Seal#30
Gravel EnvelopeMonterey Sand #3(Typ.)
Screened Casing2" Dia. Sch. 40PVC ASTM F-480-88A Threadedw/ 0.030" SlotSize (Typ.)
End cap (Typ.)
Native Fill
7.5 YR 4/3
2.5 Y 6/1
10 YR 4/4
10 YR 4/4
2.5 YR 4/3
2.5 YR 4/3
2.5 YR 4/3
7.5 YR 3/3
7.5 YR 4/3
7.5 YR 4/3
SM
CL
SP
SP
SP
SP
SP
SP
SC
CL
Silty Sand- fine to medium, poorly graded, sub-rounded, moist
Clay- medium plastic, w/ fine sand, dry
Sand- fine to medium, poorly graded, sub-rounded, w/ streaksof clay, moist
Sand- fine to medium, poorly graded, sub-rounded, moist
Sand- fine to medium, poorly graded, sub-rounded, moist towet
Sand- fine to medium, poorly graded, sub-rounded, wet
Clayey Sand- fine to medium, poorly graded, sub-rounded,wet
Sandy Clay- medium plastic, fine to medium, wet
Lat./Long.:
LSCE Project No.
Well Name:
Drilled By:
Driller:
Site Geologist:
Graphic Log Well Profile As Built
Site:
Drilling Method:
Sampling Method:
Boring Depth (ft):Drilling/Installation Date: Well Depth (ft):
Central Valley Dairy Representative Monitoring Program
Well Screen (ft):
13-7-099
Penecore Drilling
Wesley Andrews
Color USCS
Split SpoonSampleInterval Lithologic Description
NUN-MW5
Jose Nunes Dairy- 22484 W. China Camp Rd., Los Banos, CA 93635, Merced Co.
10/16/2014
31.5
Hollow Stem Auger; pilot hole nominal 8"- diameter with 9.5" drill bit
reamed hole nominal 12"-diameter with 13.25" drill bit
Norman Dewberry
37.11700/-120.89452*
ASTM D1586-11 Split-Barrel Sampling
15, 28
5-15, 18-28
*Measurement from Google Earth
0
5
10
15
20
25
30
35
8" Dia. SteelCasing w/ LockingWell Cap
Neat Cement
Fine SandTransition Seal#30
Blank Casing 2"Dia. Sch. 40 PVCASTM F-480-88AThreaded (Typ.)
12" Dia. Borehole
Centralizer
Bentonite Seal
Gravel EnvelopeMonterey Sand #3(Typ.)
Screened Casing2" Dia. Sch. 40PVC ASTM F-480-88A Threadedw/ 0.030" SlotSize (Typ.)
End cap (Typ.)
Native Fill
7.5 YR 4/3
7.5 YR 3/3
7.5 YR 3/3
7.5 YR 3/3
7.5 YR 3/4
NR
CL
CH
CH
CH
SP
NR
Silty Clay- low plastic, w/ some fine sand, moist
wet at 6'
Clay- high plastic, wet
Sand- fine to medium, porrly graded, sub-rounded, wet
No Recovery
Attachment 3
Driller’s Work Reports
Attachment 4
Well Development Records – Del-Tech Geotechnical Support, Inc.
GROUT
DATE WELL CASING MONUMENT D.T.W. SEAL RECHARGE ODOR SHEEN SURGING SURGING TOTAL TOTAL VOL.
11/4/2014 DIAMETER TYPE FEET. INCH DROPPED BEFORE AFTER DIFF.
PURGED( GAL. )
LOCATION
BEA-MW1-DD 2" POST 46.82 NO GOOD NONE NONE 56.89 57.72 0.83 20
BEA-MW2-DD 2" POST 43.50 NO GOOD NONE NONE 53.65 55.00 1.35 25
NOTES:
ALL MEASUREMENTS WERE MADE FROM THE NORTH SIDE AND TOP EDGE OF THE WELL
CASING. THE TOP OF CASING WITH A NOTCH OR BLACK MARKINGS, WHICH EVER ONE
CONDITION IS APPROPRIATE.
EACH OF THESE WELLS HAD A STEEL MONUMENT.
COMMENTS :
COMMENTS :
DEL-TECH GEOTECHNICAL SUPPORT, INC.(209) 847-8757 (OFFICE) * (209) 847-7744 (FAX) * [email protected] (Email)
BEAR CREEK DAIRY
MONITORING WELL DEVELOPMENT TASKS LOG 2014
TOTAL DEPTH - FEET.10TH's
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC.
WELL DEVELOPMENT LOCATION - DATE: 11/4/2014
PROJECT NAME: BEAR CREEK DAIRY ANALYSIS PERFORMED: N/A
ADDRESS: 15751 WEST HIGHWAY 140 SAMPLE TIME: NO SAMPLE TAKEN
CITY, STATE: LIVINGSTON, CA. 95334 SAMPLE CONTAINERS: N/A
SITE CONTACT: TILL ANGERMANN PRESERVATIVES: N/A
CONSULTANT: LUHDORFF & SCALMANINI LAB. ANALYSIS BY: N/A
PROJECT MANAGER: LUHDORFF & SCALMANINI MONUMENT: POST
WELL DEVELOPER: DEL-TECH / DON LIGHT WELL CASING MATERIAL : PVC
SIGNED: WELL CASING DIA. : 2" / 0.1632
SAMPLE MEDIA: GROUNDWATER P.I.D. READING / ODOR: N/A NONE
DATE MONITORING DEPTH TOTAL TOTAL pH E. C. TEMP. O.R.P. TURBIDITY COLORWELL TO WATER DEPTH VOLUME
( feet.in. ) ( feet.in. ) PURGED (gal) (units) (UsMHOS) (Celsius) (Mvolts) (N.T.U.)
4-Nov start BEA-MW1-DD 46.60 6.82 667 20.7 306 170 LT. BRN.4-Nov stop BEA-MW1-DD 46.80 57.72 12.00 8.13 633 20.3 240 48 CLEAR
4-Nov start BEA-MW2-DD 43.52 7.32 2511 19.2 166 330 BROWN4-Nov stop BEA-MW2-DD 43.50 55.00 16.00 7.43 2577 18.6 118 77 LT. BRN.
D. T. W. AFTER PURGE: N/A D. T. W. AT SAMPLE TIME: N/A
WELL INTEGRITY: SEE COMMENTS ON DEVELOPMENT SUMMARY.
WELL LOCATION: SEE SITE MAP.
REMARKS:
WEATHER: CLEAR / WINDY. WIND: NW 15
QUALITY CONTROL: NEW NITRILE GLOVES AT EACH SAMPLE POINT.
CONTAINMENT: NONE
INSTRUMENTATION: MYRON 6P MULTIMETER OAKTON TURBIDITY METER
HERON DTW METER
MONITORING WELL PURGING FIELD LOG 2014
BEAR CREEK
FIELD PARAMETERS
GROUT
DATE WELL CASING MONUMENT D.T.W. SEAL RECHARGE ODOR SHEEN SURGING SURGING TOTAL TOTAL VOL.
11/4/2014 DIAMETER TYPE FEET. INCH DROPPED BEFORE AFTER DIFF.
PURGED( GAL. )
LOCATION
COT-MW1-DD 2" POST 38.02 NO SLOW NONE NONE 47.80 48.10 0.30 15
NOTES:
ALL MEASUREMENTS WERE MADE FROM THE NORTH SIDE AND TOP EDGE OF THE WELLCASING. THE TOP OF CASING WITH A NOTCH OR BLACK MARKINGS, WHICH EVER ONE PAGE 1 OF 2CONDITION IS APPROPRIATE.
EACH OF THESE WELLS HAD A STEEL MONUMENT AND WERE PAINTED YELLOW WITH BOLLARDS.
DEL-TECH GEOTECHNICAL SUPPORT, INC.(209) 847-8757 (OFFICE) * (209) 847-7744 (FAX) * [email protected] (Email)
COTTONWOOD DAIRY
MONITORING WELL DEVELOPMENT TASKS LOG 2014
TOTAL DEPTH - FEET.10TH's
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC.
WELL DEVELOPMENT LOCATION - DATE: 11/4/2014
PROJECT NAME: ANALYSIS PERFORMED: N/A
ADDRESS: SAMPLE TIME: NO SAMPLE TAKEN
CITY, STATE: SAMPLE CONTAINERS: N/A
SITE CONTACT: PRESERVATIVES: N/A
CONSULTANT: LAB. ANALYSIS BY: N/A
PROJECT MANAGER: MONUMENT: POST
WELL DEVELOPER: WELL CASING MATERIAL : PVC
SIGNED: WELL CASING DIA. : 2" / 0.1632
SAMPLE MEDIA: P.I.D. READING / ODOR: N/A NONE
DATE MONITORING DEPTH TOTAL TOTAL pH E. C. TEMP. O.R.P. TURBIDITY COLORWELL TO WATER DEPTH VOLUME
( feet.in. ) ( feet.in. ) PURGED (gal) (units) (UsMHOS) (Celsius) (Mvolts) (N.T.U.)
4-Nov start COT-MW1-DD 38.00 7.98 2215 18.8 120 270 BROWN4-Nov stop COT-MW1-DD 41.10 48.10 18 8.08 2295 19.2 80 110 LT. BRN.
D. T. W. AFTER PURGE: N/A D. T. W. AT SAMPLE TIME: N/A
WELL INTEGRITY: SEE COMMENTS ON DEVELOPMENT SUMMARY.
WELL LOCATION: SEE SITE MAP.
REMARKS:
WEATHER: CLEAR / WINDY. WIND: NW 15
QUALITY CONTROL: NEW NITRILE GLOVES AT EACH SAMPLE POINT.
CONTAINMENT: NONE
INSTRUMENTATION: MYRON 6P MULTIMETER OAKTON TURBIDITY METER
HERON DTW METER
MONITORING WELL PURGING FIELD LOG 2014
FIELD PARAMETERS
COTTONWOOD DAIRY
COTTONWOOD DAIRY
10561 HIGHWAY 140
ATWATER, CA. 95301
TILL ANGERMANN
LUHDORFF & SCALMANINI
LUHDORFF & SCALMANINI
DEL-TECH / DON LIGHT
GROUNDWATER
GROUT
DATE WELL CASING MONUMENT D.T.W. SEAL RECHARGE ODOR SHEEN SURGING SURGING TOTAL TOTAL VOL.
11/5/2014 DIAMETER TYPE FEET. INCH DROPPED BEFORE AFTER DIFF.
PURGED( GAL. )
LOCATION
NUN-MW-5s 2" POST 6.85 NO SLOW NONE NONE 12.30 17.53 5.23 35
NUN-MW-5d 2" POST 6.95 NO SLOW NONE NONE 26.44 30.80 4.36 55
NOTES:
ALL MEASUREMENTS WERE MADE FROM THE NORTH SIDE AND TOP EDGE OF THE WELL
CASING. THE TOP OF CASING WITH A NOTCH OR BLACK MARKINGS, WHICH EVER ONE
CONDITION IS APPROPRIATE.
EACH OF THESE WELLS HAD A STEEL MONUMENT.
COMMENTS :
COMMENTS :
DEL-TECH GEOTECHNICAL SUPPORT, INC.(209) 847-8757 (OFFICE) * (209) 847-7744 (FAX) * [email protected] (Email)
NUNES DAIRY
MONITORING WELL DEVELOPMENT TASKS LOG 2014
TOTAL DEPTH - FEET.10TH's
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC.
WELL DEVELOPMENT LOCATION - DATE: 11/5/2014
PROJECT NAME: NUNES DAIRY ANALYSIS PERFORMED: N/A
ADDRESS: 22484 WEST CHINA CAMP ROAD SAMPLE TIME: NO SAMPLE TAKEN
CITY, STATE: LOS BANOS, CA. 93635 SAMPLE CONTAINERS: N/A
SITE CONTACT: TILL ANGERMANN PRESERVATIVES: N/A
CONSULTANT: LUHDORFF & SCALMANINI LAB. ANALYSIS BY: N/A
PROJECT MANAGER: LUHDORFF & SCALMANINI MONUMENT: POST
WELL DEVELOPER: DEL-TECH / DON LIGHT WELL CASING MATERIAL : PVC
SIGNED: WELL CASING DIA. : 2" / 0.1632
SAMPLE MEDIA: GROUNDWATER P.I.D. READING / ODOR: N/A NONE
DATE MONITORING DEPTH TOTAL TOTAL pH E. C. TEMP. O.R.P. TURBIDITY COLORWELL TO WATER DEPTH VOLUME
( feet.in. ) ( feet.in. ) PURGED (gal) (units) (UsMHOS) (Celsius) (Mvolts) (N.T.U.)
5-Nov start NUN-MW5s 6.88 8.08 8258 23.7 126 370 BROWN5-Nov stop NUN-MW5s 14.12 17.55 12.00 7.95 8220 23.5 114 210 BROWN
5-Nov start NUN-MW5d 7.00 8.35 7815 23.4 107 770 BROWN5-Nov stop NUN-MW5d 15.26 30.82 16.00 8.10 7890 23.5 86 580 BROWN
D. T. W. AFTER PURGE: N/A D. T. W. AT SAMPLE TIME: N/A
WELL INTEGRITY: SEE COMMENTS ON DEVELOPMENT SUMMARY.
WELL LOCATION: SEE SITE MAP.
REMARKS: CUSTOMER INSISTED THAT THE PURGE WATER BE DISCHARGED INTO THE
HOLDING AREA OF CATTLE - 40 FEET AWAY ---
WEATHER: CLEAR / WINDY. WIND: NW 15
QUALITY CONTROL: NEW NITRILE GLOVES AT EACH SAMPLE POINT.
CONTAINMENT: NONE
INSTRUMENTATION: MYRON 6P MULTIMETER OAKTON TURBIDITY METER
HERON DTW METER
MONITORING WELL PURGING FIELD LOG 2014
NUNES DAIRY
FIELD PARAMETERS
GROUT
DATE WELL CASING MONUMENT D.T.W. SEAL RECHARGE ODOR SHEEN SURGING SURGING TOTAL TOTAL VOL.
11/5/2014 DIAMETER TYPE FEET. INCH DROPPED BEFORE AFTER DIFF.
PURGED( GAL. )
LOCATION
MEN-MW8s 2" POST 10.53 NO SLOW NONE NONE 17.28 17.32 0.04 30
MEN-MW8d 2" POST 10.62 NO GOOD NONE NONE 29.65 30.40 0.75 35
NOTES:
ALL MEASUREMENTS WERE MADE FROM THE NORTH SIDE AND TOP EDGE OF THE WELL
CASING. THE TOP OF CASING WITH A NOTCH OR BLACK MARKINGS, WHICH EVER ONE
CONDITION IS APPROPRIATE.
EACH OF THESE WELLS HAD A STEEL MONUMENT.
COMMENTS :
COMMENTS :
DEL-TECH GEOTECHNICAL SUPPORT, INC.(209) 847-8757 (OFFICE) * (209) 847-7744 (FAX) * [email protected] (Email)
MENDES DAIRY
MONITORING WELL DEVELOPMENT TASKS LOG 2014
TOTAL DEPTH - FEET.10TH's
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
COMMENTS :WELLS DID HAVE CAPS. REPLACED THEM WITH NEW VENTED PVC CAPS. LOCK WAS NOT INSTALLED. A NEW WATERRA INERTIA PUMP W/
DEDICATED STAINLESS STEEL CHECK VALVE WAS ALSO INSTALLED. WE HAD A GOOD BOTTOM TAP ON WELL.
DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC.
WELL DEVELOPMENT LOCATION - DATE: 11/5/2014
PROJECT NAME: MENDES DAIRY ANALYSIS PERFORMED: N/A
ADDRESS: 1100 RUBLE ROAD SAMPLE TIME: NO SAMPLE TAKEN
CITY, STATE: CROWS LANDING, CA. 95313 SAMPLE CONTAINERS: N/A
SITE CONTACT: TILL ANGERMANN PRESERVATIVES: N/A
CONSULTANT: LUHDORFF & SCALMANINI LAB. ANALYSIS BY: N/A
PROJECT MANAGER: LUHDORFF & SCALMANINI MONUMENT: POST
WELL DEVELOPER: DEL-TECH / DON LIGHT WELL CASING MATERIAL : PVC
SIGNED: WELL CASING DIA. : 2" / 0.1632
SAMPLE MEDIA: GROUNDWATER P.I.D. READING / ODOR: N/A NONE
DATE MONITORING DEPTH TOTAL TOTAL pH E. C. TEMP. O.R.P. TURBIDITY COLORWELL TO WATER DEPTH VOLUME
( feet.in. ) ( feet.in. ) PURGED (gal) (units) (UsMHOS) (Celsius) (Mvolts) (N.T.U.)
5-Nov start MEN-MW8s 12.70 8.04 3386 23.8 150 165 BROWN5-Nov stop MEN-MW8s 14.12 17.55 12.00 7.97 3297 24.8 148 68 BROWN
5-Nov start MEN-MW8d 17.80 7.42 2975 21.2 117 325 BROWN5-Nov stop MEN-MW8d 22.58 30.40 16.00 7.35 2982 20.8 142 127 BROWN
D. T. W. AFTER PURGE: N/A D. T. W. AT SAMPLE TIME: N/A
WELL INTEGRITY: SEE COMMENTS ON DEVELOPMENT SUMMARY.
WELL LOCATION: SEE SITE MAP.
REMARKS: CUSTOMER INSISTED THAT THE PURGE WATER BE DISCHARGED INTO THE
HOLDING AREA OF CATTLE - 40 FEET AWAY ---
WEATHER: CLEAR / WINDY. WIND: NW 15
QUALITY CONTROL: NEW NITRILE GLOVES AT EACH SAMPLE POINT.
CONTAINMENT: NONE
INSTRUMENTATION: MYRON 6P MULTIMETER OAKTON TURBIDITY METER
HERON DTW METER
MONITORING WELL PURGING FIELD LOG 2014
MENDES DAIRY
FIELD PARAMETERS
Attachment 5
Wellhead Survey Report
