Bureau of Water Program Overview Local Government Interest
Legislative Updates n n n TMDL regulation - 2005 Congaree National Park water reclass Shellfish regulation update WQ Standards – triennial review Isolated Wetlands bill
Wastewater (NPDES) permits n Whole Effluent Toxicity (WET) n n n Old WET Law (’ 04) New WET Law (’ 05) Implementation n n EPA issued permits with State WET protocol
State Revolving Fund n Federal allotment cuts n n CW: $ 13. 5 M, $ 11. 0 M, $ 9. 3 M DW: Steady at $8. 3 M
Stormwater General Permits n n n Industrial Construction MS 4
Water Quality Monitoring n Updated monitoring strategy n 305(b)/303(d) integrated report (4/06)
Water quality standards n n n State-adopted EPA-approved Apply to waterbodies, not pollution sources Prescribe uses of waterbodies Establish water quality criteria to protect Include antidegradation policy
Water quality standards Examples of Uses and Criteria n Use: swimming n n Criteria: fecal coliform bacteria not to exceed 200 per 100 ml of water Use: trout n Criteria: temperature not to vary from natural conditions
Data Types n Water chemistry and fecal coliform bacteria n n Biological n n Most recent data Shellfish consumption n n Most recent 5 years of data Most recent classifications Fish consumption n Most recent advisories
Section 303(d) Federal Clean Water Act (1972) n n n Requires states to submit list of sites not meeting state water quality standards to EPA every two years Requires states to develop a Total Maximum Daily Load (“TMDL”) for each pollutant causing impairment If states don’t develop list or TMDLs, EPA must do it !
Determining Impairment ü No sites with acute impacts on 303(d) list ü Acute impacts to water quality dealt with immediately ü List includes persistent impairments identified through water quality monitoring
In other words… n Listing is based on results of measurements and sampling performed by DHEC or other acceptable sources.
What is a TMDL ? Total Maximum Daily Load n n Maximum amount of a pollutant that a waterbody can receive from all sources, and still meet water quality standards Maximum allowable amounts of point and nonpoint source contributions, plus a margin of safety
TMDL Development Process n Identify suitable approach, based on n n n Pollutant(s) of concern Available data Watershed size, characteristics EPA’s approval Characterize existing pollutant loads Determine percent reduction from each source so that instream water quality standards are met
TMDL Facts • TMDL process includes public notice, comment period • All TMDLs must be approved by EPA • Final TMDL confers no additional regulatory authority to DHEC • TMDL implementation through existing regulatory and non-regulatory mechanisms
TMDLs in South Carolina n 312 Approved TMDLs n 51 TMDLs being implemented n n n 17 primarily point sources 34 primarily nonpoint sources Check our web site for notices: www. scdhec. gov/water
Know your watersheds! n Become familiar with 303(d) list n n If a TMDL has already been developed for your watershed n n TMDLs will be developed for these waters (unless WQ improves!) Apply for a grant to implement voluntary portion If no TMDL has been developed n Develop it in cooperation w/ DHEC & EPA
Current Issues n n n Coastal septic tank study 401 for Corps Nationwide permit FERC relicensing Thermal imaging in shellfish waters Interstate issues
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