Arkansas Dept. of Environmental Quality Regulation No

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Presentation transcript:

Arkansas Dept. of Environmental Quality Regulation No Arkansas Dept. of Environmental Quality Regulation No. 2 and 303(d) List Sarah Clem Planning Branch Manager ADEQ Water Division Yocum Creek, Carroll County

Overview Standards Designated Uses Criteria Triennial Review Assessment of States Waters 303(d) Listing Updates

Clean Water Act Requirements Defines Water Quality goals 40 CFR 130.3 and 131 Adopt Water Quality Standards Data collection based on need 40 CFR 130.4 Monitor Waters of the State Determines attainment 40 CFR 130.8 Assessment 305(b) Integrated Report Identifies Quality Limited Waters 40 CFR 130.7(b)(1) List Impaired Waters 303(d) List Defines Waste Loads 40 CFR 130.7 Develop TMDLs Implementation 40 CFR Part 122 Develop Permit Limits

What are Water Quality Standards? Water Quality Standards define the goals for waterbodies in the state by designating uses for waterbodies, such as: Agricultural Water Supply Extraordinary Resource Water

Other Designated Uses Industrial Water Supply Primary Contact Recreation Domestic Water Supply Secondary Contact Recreation Fisheries

What is Regulation No. 2? The Federal Clean Water Act (1972) requires each state to establish Water Quality Standards (WQS) Arkansas’s WQS are found in Regulation No. 2. ADEQ Water Division Planning Branch maintains Reg. 2 Arkansas Pollution Control and Ecology Commission EPA must approve Reg. 2 Regulation No. 2 includes designated uses and the criteria to protect those uses for surface waters of the state of Arkansas. Criteria are: numeric and/or narrative

Water Quality Criteria Water Quality Standards include numerical and narrative criteria that protect Arkansas’s waters Minerals Bacteria Temperature Nutrients Toxic Substances pH

Regulation No. 2 Clean Water Act (1972) requires states to establish Water Quality Standards Standards must be reviewed every 3 years No changes Update existing standards Add appropriate new standards Revise standards that are difficult to interpret Correct grammatical and typographical errors

Triennial Review Process Public Listening Sessions Feb 2012 Stakeholder Workgroup May-July 2012 Petition the APC&E Commission Sept-Oct 2012 Public Notice Oct-Nov 2012 Public Hearing(s) Nov-Jan 2013 45-day Comment Period Nov-Jan 2013 Responsive Summary by ADEQ Jan-Mar 2013 Legislative Review May-July 2013 Adoption by the ADPC&E Commission Aug-Sep 2013 Submit to EPA for Approval Feb 2014 EPA Approval of Triennial Review Oct 2016

Remaining Issues with EPA Minerals – EPA requesting a State strategy to develop minerals criteria that are explicitly protective of aquatic life Turbidity – renaming “All-flow” criteria to “Storm-flow” or revise to include seasons for criteria Lakes standards – “applicable at 1 meter” – revise to “apply for assessment purposes only”

Clean Water Act Requirements Defines Water Quality goals 40 CFR 130.3 and 131 Adopt Water Quality Standards Data collection based on need 40 CFR 130.4 Monitor Waters of the State Determines attainment 40 CFR 130.8 Assessment 305(b) Integrated Report Identifies Quality Limited Waters 40 CFR 130.7(b)(1) List Impaired Waters 303(d) List Defines Waste Loads 40 CFR 130.7 Develop TMDLs Implementation 40 CFR Part 122 Develop Permit Limits

Inventory of Quality of All Waters of the State Requires Water Quality Monitoring Network Adequate Magnitude? Coverage of all waters Frequency of sampling Parameters to sample (physical, chemical, biological) Conditions when sampling Best Professional Judgment Concentration of potential pollution activities Perceived problem areas

Inventory of Quality of All Waters of the State Five Water Quality Monitoring Networks Ambient Water Quality Monitoring Network Watershed Monitoring Network Lakes Water Quality Monitoring Network Groundwater Quality Monitoring Network

Water Quality Monitoring Network CHEMICAL ANALYSES Routine Analyses Conventional parameters (pH, D.O., Temp.) Minerals (Cl, SO4, TDS) Nutrients (forms of N and P) Heavy metals (Cu, Zn, Pb, etc.) Other associated ions (Na, Ca, K, etc.)

Water Quality Monitoring Network AMBIENT SURFACE WATER NETWORK Approximately 150 stations Chemical parameters and flow (when available) Sampled monthly for approximately 30-35 years Monitoring objectives Big river systems Below point source discharges Potentially problematic nonpoint source areas Least-disturbed reference streams Consistent long-term monitoring

Water Quality Monitoring Network WATERSHED MONITORING NETWORK Macroinvertebrate Community Ecoregion Based: 30-60 samples/year Plus Routine Water Quality Analyses & Flow Continuing to work on projects such as the Lakes Projects, ERW Project, & working with Natural Heritage and BWD Fish Community Ecoregion Based: 30+ samples/year Plus Routine Water Quality Analyses & Flow

Water Quality Monitoring Network LAKES AND RESERVOIRS 16 lakes sampled quarterly since 2011 Other lakes sampled regularly in order to: Identify potential reference Lakes Verify reference conditions Collect adequate quantity of data Develop improved water quality standards for lakes Beaver Lake, Blue Mountain Lake, Bull Shoals Lake, Lake Catherine, Dierks Lake, DeGray Lake, DeQueen Lake, Gillham Lake, Greers Ferry Lake, Lake Greeson, Lake Hamilton, Lake Millwood, Lake Nimrod, Lake Norfork, & Lake Ouachita

Clean Water Act Requirements Defines Water Quality goals 40 CFR 130.3 and 131 Adopt Water Quality Standards Data collection based on need 40 CFR 130.4 Monitor Waters of the State Determines attainment 40 CFR 130.8 Assessment 305(b) Integrated Report Identifies Quality Limited Waters 40 CFR 130.7(b)(1) List Impaired Waters 303(d) List Defines Waste Loads 40 CFR 130.7 Develop TMDLs Implementation 40 CFR Part 122 Develop Permit Limits

Clean Water Act Requirements Defines Water Quality goals 40 CFR 130.3 and 131 Adopt Water Quality Standards Data collection based on need 40 CFR 130.4 Monitor Waters of the State Determines attainment 40 CFR 130.8 Assessment 305(b) Integrated Report Identifies Quality Limited Waters 40 CFR 130.7(b)(1) List Impaired Waters 303(d) List Defines Waste Loads 40 CFR 130.7 Develop TMDLs Implementation 40 CFR Part 122 Develop Permit Limits

Assessment Example: pH pH Standard in Reg. 2.504 pH between 6.0 and 9.0 standard units are the applicable standards for streams. Assessment Methodology Stream ...segments will be listed as non-support ... when a variance from the pH standard ... (occurs) in more than 10% of the total samples within the period of record.

Assessment Example: pH Example Data Set The pH water quality criterion is 6.0-9.0. 3 of the 10 (greater than 10%) samples are outside the criterion. If these were the only qualifying data available for this waterbody, it would be listed on the 303(d) List of Impaired Waterbodies. Date pH Result 2/12/2014 6.3 4/15/2014 5.7 6/18/2014 6.0 8/11/2014 6.2 10/14/2014 5.5 12/16/2014 5.4 2/10/2015 6.7 4/8/2015 6/13/2015 6.4 8/14/2016

303(d) Report Listing Format Five Categories of Waters (continued) 5 – Waters not meeting WQ Standards High Truly impaired, TMDL needed Medium Adoption of new regulations or standards Questionable data (QA/QC) Data verification needed Impairment caused by a point source Low Impairment is naturally occurring Segment added by EPA

Draft 2016 Impaired Waterbodies

Clean Water Act Requirements Defines Water Quality goals 40 CFR 130.3 and 131 Adopt Water Quality Standards Data collection based on need 40 CFR 130.4 Monitor Waters of the State Determines attainment 40 CFR 130.8 Assessment 305(b) Integrated Report Identifies Quality Limited Waters 40 CFR 130.7(b)(1) List Impaired Waters 303(d) List Defines Waste Loads 40 CFR 130.7 Develop TMDLs Implementation 40 CFR Part 122 Develop Permit Limits

Designated Use Support & Water Quality Standards Attainment

De-Listing of Waters Development of a TMDL Implement control strategies other than a TMDL Updated assessments indicate no known impairments Improved delineation of impaired waterbodies Revised water quality standards and assessment methodologies

De-Listings from 2014 to 2016 153 Pollutant Pairs Minerals - Cl, SO4, TDS (45) Metals - Cu, Pb, Zn (49) Turbidity (29) pH (8) Dissolved Oxygen (8) Temperature (12) Pathogens (2)

New Listings for 2016 104 Pollutant Pairs Minerals - Cl, SO4, TDS (19) Turbidity (3) Dissolved Oxygen (26) Metals - Cu, Pb, Zn, Se (13) Temperature (2) Pathogens (o) pH (7)

Updates Assessment Methodology Stakeholder Workgroup Occurring now Public Comment Period this summer Triennial Review Stakeholder Workgroup Stakeholder workgroup beginning Summer 2017

The Stakeholder Process Identify Stakeholders Gather Input Discuss Input Make Recommendations

https://www.adeq.state.ar.us/water/ planning/integrated/assessment/ List serve Drop Down Menu