agenda utah water quality standards workgroup october ......10/13/2016 agenda utah water quality...

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10/13/2016 AGENDA Utah Water Quality Standards Workgroup October 17, 2016 1:00-3:00 Great Salt Lake West Conference Room, 3rd Floor Multi-Agency State Office Building Call in: 1-877-820-7831, 782887# Time Subject Discussion Lead Details/Supporting Documents 1:00- 1:10 Welcome and introductions Chris Bittner, DWQ 1:10- 1:40 USEPA Updates Lariena Guenzel, USEPA 8 1. Final Se Criteria 2. Draft Se Implementation Guidance 3. Technical Support Document for Copper Biotic Ligand Model 4. HQ Nutrient memorandum 1:40- 2:10 Proposed Standards Changes Chris Bittner, DWQ See Proposed Standards Changes Memo 1. Utah Lake Class 2B to 2A 2. Mill Creek (Moab) Class 2B to 2A 3. Grove and Battle Creeks (Utah County) 4. Scout Lake, add Class 1C 5. Weber River-3, add Class 1C 2:10- 2:25 2013 USEPA Ammonia Criteria Chris Bittner, DWQ 1. USU Historical Surveys 2. JRFBWC Mill Creek Mussel Survey 3. USEPA Comments on Jordan River Surveys 2:25- 2:40 Upcoming 2017 Triennial Review Chris Bittner, DWQ 1. Schedule 2. Updated to-do list, See 3. New USEPA Requirement to address 304A Criteria 2:40- 2:45 Next Meeting Chris Bittner, DWQ January 16, 2017? You need to check in with the 1 st floor DEQ receptionist for a name badge prior to coming to the DWQ 3 rd floor office.

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Page 1: AGENDA Utah Water Quality Standards Workgroup October ......10/13/2016 AGENDA Utah Water Quality Standards Workgroup October 17, 2016 1:00-3:00 Great Salt Lake West Conference Room,

10/13/2016

AGENDA

Utah Water Quality Standards Workgroup

October 17, 2016 1:00-3:00

Great Salt Lake West Conference Room,

3rd Floor Multi-Agency State Office Building

Call in: 1-877-820-7831, 782887#

Time Subject Discussion

Lead

Details/Supporting Documents

1:00-

1:10

Welcome and

introductions

Chris

Bittner,

DWQ

1:10-

1:40

USEPA

Updates

Lariena

Guenzel,

USEPA 8

1. Final Se Criteria

2. Draft Se Implementation Guidance

3. Technical Support Document for Copper Biotic

Ligand Model

4. HQ Nutrient memorandum

1:40-

2:10

Proposed

Standards

Changes

Chris

Bittner,

DWQ

See Proposed Standards Changes Memo

1. Utah Lake Class 2B to 2A

2. Mill Creek (Moab) Class 2B to 2A

3. Grove and Battle Creeks (Utah County)

4. Scout Lake, add Class 1C

5. Weber River-3, add Class 1C

2:10-

2:25

2013 USEPA

Ammonia

Criteria

Chris

Bittner,

DWQ

1. USU Historical Surveys

2. JRFBWC Mill Creek Mussel Survey

3. USEPA Comments on Jordan River Surveys

2:25-

2:40

Upcoming 2017

Triennial

Review

Chris

Bittner,

DWQ

1. Schedule

2. Updated to-do list, See

3. New USEPA Requirement to address 304A

Criteria

2:40-

2:45 Next Meeting

Chris

Bittner,

DWQ

January 16, 2017?

You need to check in with the 1st floor DEQ receptionist for a name badge prior to

coming to the DWQ 3rd

floor office.

Page 2: AGENDA Utah Water Quality Standards Workgroup October ......10/13/2016 AGENDA Utah Water Quality Standards Workgroup October 17, 2016 1:00-3:00 Great Salt Lake West Conference Room,

Mrrrr¡re S¡eru-fn¡ SnnerMeetins Water Quality Standards Workgroup Meeting Date: October t7 | 2OL6Chair: C Bittner Place/Room: Great Salt Lake West

Name Affliliation Attendance

Chris Bittner DEQ/DWQ

Jodi Gardberg DEQ/DWQ

Paul Dremman Trout Unlimited /.o-Lareina Guenzel USEPA RB Ì\rJ- qID

Lisa Kirschner PBL/RTKCì

Ph,tt"^Jay Olsen Utah Dept of Food and Agriculture

Leland Meyers CDSD

Mike Lau CUWCD

Jodi Gardberg DEQ/DWQ

Bard Rasmussen Aqua Engineering

Chris Cline USFWS

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Page 3: AGENDA Utah Water Quality Standards Workgroup October ......10/13/2016 AGENDA Utah Water Quality Standards Workgroup October 17, 2016 1:00-3:00 Great Salt Lake West Conference Room,

Meeting Summary

Utah Water Quality Standards Workgroup

April 18, 2016 See agenda and supporting materials at http://www.waterquality.utah.gov/WQS/workgroup.htm

Selenium. Lareina Guenzel provided updates of recent activities from USEPA Headquarters. Ms.

Guenzel gave an overview of the recently released implementation guidance documents for the

selenium criteria for the protection of aquatic life. Workgroup members were encouraged to review the

guidance documents and provide comments.

Mr. Meyers commented that the stringency of the water column criteria would be problematic for

Utah’s waste water treatment facilities because of ambient concentrations of selenium in source waters.

Selenium, especially at low concentrations, is not amenable to current treatment processes which could

impact the pretreatment programs. Mr. Bittner commented that Utah’s coal mines could also be

affected.

Ms. Guenzel clarified that USEPA’s recommendation is that all four elements (two water column and

two tissue-based) be adopted. Mr. Meyers recommended that the criteria be adopted with an

implementation schedule that potentially initially adopts the tissue-based criteria and the water column

criteria later. This could provide time for dischargers to collect and analyze tissue data. Mr. Bittner said

that these issues should be considered by workgroup as Utah moves forward to adopt the criteria. Ms.

Guenzel recommended that Utah review the existing available selenium data. USEPA Region 8 has

applied for funding for laboratory capacity to assist the Region 8 States with implementing the selenium

criteria. Region 8 is already providing analytical data for fish tissue samples collected by Utah in 2016.

When these data are available, DWQ will compile the available water quality data for the workgroup.

Copper. Ms. Guenzel introduced the recently released guidance document for estimating the values for

missing parameters when implementing the copper biotic ligand model (BLM). Mr. Meyers asked if

USEPA still supports the water effects ratio (WER). Ms. Guenzel indicated that no updates of WER were

anticipated and USEPA’s recommendation is to use the BLM. USEPA disapproved a WER in West Virginia

based on a comparison to the criteria recommended by the BLM. USEPA still supports site-specific

translators. Comparison with the BLM results show that while the hardness-based equations are often

more stringent than necessary for sewage treatment facilities, for some waters the hardness-based

criteria are not protective. Mr. Bittner commented that the large data needs for the BLM limits the

practicality of adoption statewide.

USEPA is also working on a BLM for aluminum.

Proposed Standards Changes. The workgroup had no comments on the addition of Class 1C to Grove

and Battle Creeks. The consensus was that the aquatic life use class and recreational uses should be

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determined prior to adding the Class 1C. DWQ will compile the available data and conduct a site

reconnaissance and return to the workgroup with recommendations.

With regards to changing the recreational uses from Class 2B to 2A, Mr. Olsen and Mr. Meyers asked if

e. coli. data are available for Utah Lake and Mill Creek (Moab) and if the change would result in new

impairment decisions. Mr. Bittner agreed to check on data availability but that the data or current

assessment statuses are not germane to changing the use. These specific changes will be shown to the

workgroup in a rule markup prior to presenting to the Water Quality Board to commence rule making.

Ammonia. Mr. Bittner reviewed progress on adoption of the 2013 USEPA ammonia criteria and updated

the group on the reports submitted by the JRFBWC. A draft of the DWQ ammonia implementation plan

was presented but not discussed because the workgroup did not have sufficient time to review. DWQ

will provide copies with a less obtrusive draft watermark for discussion at the next meeting.

Work Plan. Mr. Bittner provided an update of Utah’s to-do list for water quality standards. Only the 1st

worksheet was successfully distributed to the workgroup prior to the meeting, so discussions were

delayed until the next meeting. The general schedule for the 2017 Triennial Review is that DWQ will

solicit public comments for the review in the newspaper and via public hearing in January. DWQ will

compile the comments and then discuss priorities with the workgroup after the January meeting.

Action Items: DWQ: 1. Compile selenium data for Utah when 2016 fish data are available. 2. Compile available data to support recommendation of aquatic life and recreational uses for

Battle and Grove Creeks. 3. Compile available data for e. coli. in Utah Lake and Mll Creek (Moab). 4. Distribute the draft ammonia adoption flowcharts with a less obtrusive draft watermark 5. Distribute the complete water quality standards to-do list

Department of Agriculture:

1. Check if Dept. of Agriculture maintains records of how much carbaryl is used in Utah to support adoption of the carbaryl water quality data.

Next Meeting: Monday, January 23, 2017 1:00-4:00

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195 North 1950 West • Salt Lake City, UT

Mailing Address: P.O. Box 144830 • Salt Lake City, UT 84114-4830

Telephone (801) 536-4200 • Fax (801-536-4211 • T.D.D. (801) 903-3978

www.deq.utah.gov

Printed on 100% recycled paper

State of Utah

GARY R. HERBERT

Governor

SPENCER J. COX

Lieutenant Governor

Department of

Environmental Quality

Alan Matheson

Executive Director

DIVISION OF DRINKING WATER

Kenneth H. Bousfield, P.E.

Director

May 31, 2016

Richard Bay

Jordan Valley WCD

8215 South 1300 West

West Jordan, Utah 84088

Dear Mr. Bay:

Subject: Plan Approval and Operating Permit, Battle Creek Intake (WS002D) and Grove Creek

Intake (WS002E) System #18027, File #10320

The Division of Drinking Water (the Division) met with representatives from Pleasant Grove City,

Provo River Water Users Association (PRWUA), Metropolitan Water District of Salt Lake and Sandy

(MWDSLS), Jordan Valley Water Conservancy District (JVWCD), and John Schiess of Horrocks

Engineers on February 4, 2016, to discuss Battle Creek and Grove Creek surface water diversions. As-

built drawings and preliminary source chemistry were received at that time. Additional water

chemistry data was received April 27, 2016.

It is our understanding that historically the overflow drainage from Battle Creek and Grove Creek was

captured in the Murdock Canal. When this canal was covered, piping was added to allow for the

overflow to continue entering the Murdock Canal (also known as the Provo River Aqueduct). The

Murdock Canal/ Provo River Aqueduct can be used as a raw water source for both Metropolitan Water

District’s treatment plant and for Joran Valley Water Conservancy’s treatment plant. However, the

intake structures and piping for these sources is owned and maintained by Pleasant Grove City.

The Battle Creek Intake has been added to all three water systems and is identified as follows:

Pleasant Grove City (System #25022) —Battle Creek Intake (WS0018)

Metropolitan Water District (System #18016) —Battle Creek Intake to the PRA (WS003C)

Jordan Valley WCD (System #18027) — Battle Creek Intake (WS002D)

The Grove Creek Intake has been added to all three water systems and is identified as follows:

Pleasant Grove City (System #25022) — Grove Creek Intake (WS0019)

Metropolitan Water District (System #18016) — Grove Creek Intake to the PRA (WS003D)

Jordan Valley WCD (System #18027) — Grove Creek Intake (WS002E)

The subject intakes are listed as active sources in your water system. We have received the following

information for Battle Creek and Grove Creek Intakes:

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Richard Bay

Page 2 of 2

May 31, 2016

1. Documentation of valid water right(s).

2. Location data on the diversion structures.

3. New source chemical analyses.

4. Source Protection Plan

5. Record Drawings

We have determined that the submittal for Battle Creek and Grove Creek basically comply with the

applicable portions of Utah’s Administrative Rules for Public Drinking Water Systems in R309 and

that conditions of issuing an Operating Permit have been accomplished. On this basis, Plan Approval

and an Operating Permit for Battle Creek (WS002D) and Grove Creek (WS002E) Intakes is

hereby issued as constituted by this letter.

Please maintain a copy of this letter with your permanent records for future reference.

Monitoring and Reporting Requirement

Enclosed please find a copy of this water system’s master report, which includes the inventory

report showing the facilities currently listed in our database for your system and the monitoring

schedule. Please note that the addition of the Battle Creek Intake and the Grove Creek Intake have

been included in the RW002, Combined Raw Water to TP002 Group. Your monitoring

requirements have not changed. Please contact Emily Frary at (801) 536-0070 or

[email protected] for questions related to monitoring and reporting requirements.

If you have any questions, please contact Tammy North, of this office, at (801) 536-4293, or Ying-

Ying Macauley, Engineering Section Manager, of this office, at (801) 536-4188.

Sincerely,

Michael J. Grange, P.E.

Acting Director TN/yym/mdb/hb

Enclosure ─ Water System Master Report

cc: Royal DeLegge, Salt Lake County Environmental Health Director, [email protected]

Gregory H Woodcox, Pleasant Grove City, [email protected]

Steve Cain, PRWUA, [email protected]

Shazelle Terry, JVWCD, [email protected]

Mike Wilson, MWDSLS, [email protected]

Matt Tietje, MWDSLS, [email protected]

John Schiess, Horrocks, [email protected]

Tammy North, Division of Drinking Water, [email protected]

Nathan Lunstad, Division of Drinking Water, [email protected]

Kate Johnson, Division of Drinking Water, [email protected]

Rachael Cassady, Division of Drinking Water, [email protected]

DDW-2016-010593

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State of Utah

GARY R. HERBERT Governor

SPENCER J. COX

Lieutenant Governor

Department of Environmental Quality

Alan Matheson

Executive Director

DIVISION OF DRINKING WATER Kenneth H. Bousfield, P.E.

Director

January 19, 2016 Ms. Claudia Wheeler Metropolitan Water District of Salt Lake & Sandy 3430 East Danish Road Cottonwood Heights, UT 84093 Dear Ms. Wheeler, Subject: Preliminary Evaluation Report for Battle Creek and Grove Creek intakes Metropolitan Water District - System no. UTAH18016, Sources nos. WS004 and WS005 Jordan Valley WCD – System no. UTAH18027, Sources nos. WS072 and WS073 Thank you and your consultant, John Schiess of Horrocks Engineering, for submitting a request to the Division of Water Quality to classify Battle and Grove Creeks as drinking water sources. With that request, our requirements for these Preliminary Evaluation Reports are met, and we concur with this submittal. We also consider this submittal to meet the requirements and intent of a full Drinking Water Source Protection plan for these intakes. You may combine future updates for these intakes with the updates associated with the Provo River and Aqueduct, or you may submit them separately. Those updates will be due on or before December 31, 2019. If you have any further questions regarding this review or the Source Protection Program, please contact the Source Protection staff at (801) 536-4200. To help serve you more efficiently, please refer to your water system number in all correspondence. Sincerely,

Kenneth H. Bousfield, P.E. Director KEJ/ssh cc: Shazelle Terry, Jordan Valley Water Conservancy District, 15305 South 3200 West, Herriman, UT 84065 Marty Beaumont, Pleasant Grove City, 323 West 700 South, Pleasant Grove, UT 84062 John E. Schiess, Horrocks Engineers, 2162 West Grove Parkway, Pleasant Grove, Utah 84062 Royal DeLegge, Environmental Director, Salt Lake County Health Department, [email protected] Bryce C. Larsen, Environmental Director, Utah County Health Department, [email protected]

195 North 1950 West • Salt Lake City, UT

Mailing Address: P.O. Box 144830 • Salt Lake City, UT 84114-4830 Telephone (801) 536-4200 • Fax (801) 536-4211 • T.D.D. (801) 903-3978

www.deq.utah.gov Printed on 100% recycled paper

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Ms. Claudia Wheeler Page 2 January 19, 2016 DDW-2016

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U.S. EPA Water Quality

Standards Updates

UTAH WQS WORKGROUP

10/17/16

PRESENTED BY:

LAREINA GUENZEL, U.S. EPA REGION 8 WQU

Page 24: AGENDA Utah Water Quality Standards Workgroup October ......10/13/2016 AGENDA Utah Water Quality Standards Workgroup October 17, 2016 1:00-3:00 Great Salt Lake West Conference Room,

U.S. EPA WQS Updates

1. New 304(a) recommendations for selenium (July 2016)

2. Draft selenium implementation documents (October 2016)

3. Biotic ligand model (BLM) technical support document: missing parameters (March 2016)

4. Joel Beauvais nutrient memo (September 2016)

2

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New Selenium Criteria3

Page 26: AGENDA Utah Water Quality Standards Workgroup October ......10/13/2016 AGENDA Utah Water Quality Standards Workgroup October 17, 2016 1:00-3:00 Great Salt Lake West Conference Room,

4

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Draft Selenium Technical Support

Documents and FAQs

� Adopting and Implementing EPA’s 2016 Selenium Criterion in Water Quality Standards (TSD)

� Fish Tissue Monitoring for Implementation of EPA’s 2016 Selenium Criterion (TSD)

� Implementing the 2016 Selenium Criterion in Clean Water Act Sections 303(d) and 305(b) Assessment, Listing, and Total Maximum Daily Load (TMDL) Programs (FAQ)

� Implementing WQS that Include Elements Similar or Identical to EPA’s 2016 Selenium Criterion in Clean Water Act Section 402 NPDES Programs (FAQ)

Documents are available at:

https://www.epa.gov/wqc/aquatic-life-criterion-selenium#draft2

Public comment closes 12/10/16

5

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� Recommends default input

parameters for the BLM when

site-specific data are not

available

� Public comment closed April

2016

6

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Estimating Missing Parameters:

Summary of Recommendations

� Implementation of Cu BLM criteria does not require measurements

of input parameters at all sites

� Geochemical Ions: 10th percentile as default by ecoregion and

stream order

� Provides for realistic and protective criteria

� DOC: 10th percentile DOC estimates will provide protective criteria

� Estimates are very conservative most of the time resulting in protective criteria

� For best BLM calculations EPA recommends measurement of site pH

and DOC

7

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Renewed Call to Action:

Nutrient Memorandum� Recent examples of the continuing problem

� Calls upon states and stakeholders to intensify their efforts in

collaboration with EPA

� Keeping the focus on nutrient reductions from all sources

� Announces additional support for states planning project to reduce

nutrient impacts to drinking water and contributions to harmful algal

blooms

https://www.epa.gov/nutrient-policy-data/what-epa-doing-reduce-

nutrient-pollution

8

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Contact informationLareina Guenzel, EPA Region 8 Water Quality Unit, [email protected]

Questions???9

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Dave Erley, Moab Area Watershed Partnership Chair P. O. Box 46 Moab, UT 84532

Arne Hultquist Southeastern Utah Watershed Coordinator P. O. Box 46 Moab, UT 84532

Walter Baker Utah Division of Water Quality, Director P.O. Box 144870 Salt Lake City, Utah 84114-4870 Subject: Recreational Use Designation for Mill Creek in Grand County, UT Dear Walter Baker, The Moab Area Watershed Partnership appreciates the support the Utah Division of Water Quality (UDWQ) has historically provided. Your monetary and monitoring support have provided a solid foundation for our efforts to improve water quality in Spanish and Castle Valley. The Moab Area Watershed Management Plan requires the watershed coordinator to summarize and present the previous water year’s data at our November meeting. The members consider the results and make recommendations for monitoring, projects and policy. During the last meeting the membership appreciated UDWQ’s support for E. Coli sampling in our watersheds and discussed the recreational use designations of Mill Creek in Grand County. It is currently classified as 2B, protected for infrequent primary contact recreation. The MAWP considers this classification inappropriate for Mill Creek in Grand County because the creek is Moab’s swimming hole. With this letter, the MAWP is requesting a “rule change” to R317-2 for the recreation classification of Mill Creek in Grand County to 2A, protected for frequent primary contact recreation. Historically, Mill Creek was originally separated from classification with the “Colorado River and Tributaries from Lake Powell to the State line” because it is a cold water fishery (Class 3A), whereas the Colorado River is a warm water fishery (Class 3B). The Colorado River and tributaries from Lake Powell to the State line was originally a 2B stream but was changed to recreational class 2A because of the rafting and swimming that occurs seasonally. Swimming is also a very popular seasonal use of Mill Creek. Mill Creek originally received a 2B classification because it was a tributary to a 2B stream What the MAWP does not understand is how to apply for and work through the use reclassification process. We are willing to help with the process if necessary. Please let us know how to proceed. Sincerely, Dave Erley Arne Hultquist

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Update on 2013 EPA Ammonia Criteria for Utah

Utah Water Quality Standards Workgroup October 17, 2016

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Division of Water Quality

NH3 Implementation • Historical Surveys for Utah

– Karen Mock and Chuck Hawkins, USU

– Comment period on draft study plan ended July 15, 2016

– Comments received from David Richards

– Expected completion June, 2017

• Separate solicitation for direct-contract RFP for determination of when early life stages are present

– August 20, 2016

– Jereme Gaeta, USU

2

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Division of Water Quality

Freshwater Mollusk Survey, Jordan River, UT

Part 1: Unionid Mussels and Non-Pulmonate Snails, Final Report, v. 2.1 November 14, 2014

Unionoida Mussel and Non-Pulmonate Snail Survey and Status in the Jordan River, UT, 2014, Final Report, May 20,

2015

Recalculation of Ammonia Criteria for Central Valley Water Reclamation Facility’s Discharge into Mill Creek, Salt

Lake County, UT based on Native Unionoida Surveys and Metapopulation Dynamics Final Draft Report v. 4.0

December 19, 2015

Recalculation of Ammonia Criteria for Central Valley Water Reclamation Facility’s Discharge into Mill Creek, Salt

Lake County, UT based on Native Unionoida Surveys and Metapopulation Dynamics, Final Report v. 4.0 Original:

December 19, 2015, Final: July 14, 2016

Four reports submitted by JRFBWC

3

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Division of Water Quality

Adding Error Estimates to EPA’s NH3 Recalculation Criteria

Addendum to Richards 2016 Draft Report.Version 1.2, April 19, 2016

Comparison between two Macroinvertebrate Assessments in Lower Mill Creek

Technical Report. July 17, 2016

Effects of Inorganic Suspended Matter on Mussel Population Viability in the Utah

Lake/Jordan River Drainage: A Preliminary Literature Review. V. 1.2, March 2, 2016

Numeric Water Quality Criteria Recalculation for Several Toxicants Related to

Central Valley Water Reclamation Facility Discharge into Mill Creek, Salt Lake

County, UT, Part 1: Ammonia, v. 1.1, April 15, 2016

Additional Supporting Documents Submitted

4

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2. Unionid mussels historically present?

1. Unionid mussels currently present?

10. CMC Unionid and Trout Present

CCC Unionid s Present Go to Figure 3

5. Unionid absence attributable to 131.10 (g) factor?

4. Unionid Use Attainability-like Analysis

6. CMC Unionids absent and Trout

present CCC Unionid Absent and Fish Early

Life Stages absent

8. CMC Best Attainable for Unionds

CCC Best Attainable for Unioids and Fish Early Life Stages absent

Yes

Yes or unknown

No

No or unknown

No

Figure 1 Utah Decision Diagram for Adoption of 2013 EPA Criteria for ammonia

for Class 3A

No

3. Early life stages present?

7. CMC Unionids absent and Trout

present CCC Unionid absent and Fish Early

Life Stages present

Yes or unknown

Yes

9. CMC Best Attainable for Unionids CCC Best Attainable for Unionids and Fish Early Life Stages Present

3. Early life stages present?

Yes No

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2. Unionid mussels historically present?

1. Unionid mussels currently present?

5. Unionid absence attributable to 131.10 (g) factor?

4. Unionid Use Attainability-like Analysis

Yes or unknown

No

No or unknown

No

Figure 2 Utah Decision Diagram for Adoption of 2013 EPA Criteria for ammonia

for Classes 3B-3D

Yes

Yes 11. Water Temp > 21 C?

3. Early life stages present?

Yes

Yes or unknown

No

3. Early life stages present?

14. CMC Unionid s present and Trout

absent CCC Unionid s Present

Go to Figure 3

12. CMC Unionids and Trout absent

CCC Unionid Absent and Fish Early Life Stages absent

8. CMC Best Attainable for Unionds CCC Best Attainable for Unionids and Fish Early Life Stages absent

13. CMC Unionids and Trout absent

CCC Unionid absent and Fish Early Life Stages present

9. CMC Best Attainable for Unionids CCC Best Attainable for Unionids and Fish Early Life Stages Present

11. Water Temp > 21 C?

No

No

Yes

Yes

No

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18. Conduct toxicity testing on Utah-

specific Unionids?

16. UAA widespread social and economic impact applies?

19. Utah- or site-specific recalculated criteria

15. Criteria based on presence of Unionids

17. Site-specific criteria based on highest

attainable use

Yes

Figure 3. Optional Additional Steps for Utah Adoption of 2013 EPA Criteria for ammonia

10. Class 3A CMC Unionids CCC Unionids

Present OR 14.

CMC Unionids present and Trout absent CCC Unionids Present

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Division of Water Quality 8

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195 North 1460 West • Salt Lake City, UT

Mailing Address: P.O. Box 144870 • Salt Lake City, UT 84114-4870 Telephone (801) 536-4300 • Fax (801) 536-4301 • T.D.D. (801) 903-3978

www.deq.utah.gov

Printed on 100% recycled paper

State of Utah

GARY R. HERBERT

Governor

SPENCER J. COX

Lieutenant Governor

Department of

Environmental Quality

Alan Matheson Executive Director

DIVISION OF WATER QUALITY Walter L. Baker, P.E.

Director

M E M O R A N D U M

TO: Water Quality Standards Workgroup

FROM: Chris Bittner, Chair

DATE: October 11, 2016

SUBJECT: Three Proposed Standards Changes and Supporting Information

October 17, 2016 Water Quality Standards Workgroup Meeting

1. Battle and Grove Creeks, Utah County, Utah. At the request of Pleasant Grove City via Horrock

Engineering, DWQ proposes to add the designated use of Class 1C raw water for domestic use to

Battle and Grove Creeks (see map figure). This change is supported by the Utah Division of

Drinking Water (see attached letters). The change would apply to Battle Creek and Grove Creek

from the Murdoch Diversion to headwaters. These creeks are not specifically classified and

therefore have the default use classifications of Class 2B, infrequent primary and secondary

contact recreation and Class 3D, waterfowl, shorebirds and other aquatic life. DWQ will conduct a

site reconnaissance and review the available data collected to support that these creeks are suitable

sources of potable water prior to making specific recommendations on the recreational use and

aquatic life use.

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2. Utah Lake, Utah County. Propose to change the recreational designated use from Class 2B,

infrequent primary and secondary contact recreation to Class 2A, frequent primary and secondary

contact recreation. Utah has designated water bodies with public swim beaches as Class 2A. In

addition to swimming, Utah Lake supports boating activities such as jet skiing, water skiing and

wake boarding. These are all activities with “where there is a high likelihood of ingestion of water

or a high degree of bodily contact with the water.”

3. Mill Creek, Moab, Utah. Propose to change the recreational designated use from Class 2B,

infrequent primary and secondary contact recreation to Class 2A, frequent primary and secondary

contact recreation. Local residents have petitioned for the change and provided pictures of people

swimming at a popular “swimming hole.” Letters of supporting the change from the U.S. Bureau

of Land Management and the Moab Area Watershed Partnership are attached.

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