bureau of water

Bureau of Water Overview

Wastewater issues

Drinking water issues

Wrap up topics

Regulations TMDL (done) Stream reclass (Congaree National

Park) Shellfish WQ Standards (future) State stormwater ?

EPA Strategic Plan

State program review Wet weather initiatives

Storm water CMOM

Litigation Compliance oversight

Wastewater issues Toxicity Update

Old WET Law (’04)

New WET Law (’05)

Residual Impact (401, WET protocol)

Wastewater issues Viabilility

New systems/transfers

Existing systems

Current problems

Wastewater issues State Revolving Fund

Federal allotment cuts CW: $ 13.5M, $ 11.0M, $ 9.3M DW: Steady at $8.3M

Current base rates 3.25% “Clean Water” 3.00% “Drinking Water”

Wastewater issues Stormwater general permits

Industrial Construction MS4

Ambient Waters Updated monitoring strategy

305(b)/303(d) integrated report (4/06)

Ambient Waters TMDLs

312 TMDLs approved “319” funds for implementation

Phosphorus TMDLs Catawba River Reedy River

Publish 303(d) List of Impaired Waters

Manage through grants,partnerships &

voluntary programs

Control via NPDES Permits

Nonpoint Source LAPoint Source WLA

Allocate Load

Determine Maximum Allowable LoadAnd required load reduction

Water Quality Standards

Monitoring and Assessment

TMDL TMDL

(R.61-68)

Water quality standards

State-adopted EPA-approved Apply to waterbodies, not pollution

sources Prescribe uses of waterbodies Establish water quality criteria to protect Include antidegradation policy

Examples of Uses and Criteria

Use: swimming Criteria: fecal coliform bacteria not

to exceed 200 per 100 ml of water Use: trout

Criteria: temperature not to vary from natural conditions

Water quality standards

Data Types Water chemistry and fecal coliform

bacteria Most recent 5 years of data

Biological Most recent data

Shellfish consumption Most recent classifications

Fish consumption Most recent advisories

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SCDHEC Fixed Ambient SurfaceWater Monitoring Sites

Major Basin Boundaries

Types of Monitoring Sites#S Integrator Sites#S Special Purpose Sites#S Summer Only Sites#S Sediment Only Sites#S Basin Sites

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SCDHEC MacroinvertebrateMonitoring Sites

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Rotating Basin Boundaries#S Macroinvertebrate Sites

Section 303(d) Federal Clean Water Act (1972)

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 !

No sites with acute No sites with acute impacts on 303(d) listimpacts on 303(d) list

Acute impacts to water Acute impacts to water quality dealt with quality dealt with immediatelyimmediately

List includesList includes persistent persistent impairments identified impairments identified through water quality through water quality monitoringmonitoring

Determining Impairment

In other words…

Listing is based on results of measurements and sampling performed by DHEC or other acceptable sources.

What is a TMDL ?

Total Maximum Daily Load 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

Identify suitable approach, based on Pollutant(s) of concern Available data Watershed size, characteristics EPA’s approval

Characterize existing pollutant loads Determine percent reduction

from each source so that instreamwater quality standards are met

TMDL Development Process

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 312 Approved TMDLs

51 TMDLs being implemented 17 primarily point sources 34 primarily nonpoint sources

0 TMDLs on public notice 47 TMDL drafts completed 25 TMDLs under development

(Unsolicited Advice)

Become familiar with 303(d) list TMDLs will be developed for

these waters (unless WQ improves!)

If a TMDL has already beendeveloped for your watershed Apply for a grant to implement

voluntary portion If no TMDL has been developed

Develop it in cooperation w/DHEC & EPA

Wrap up topics Septic tank study 401 for Corps Nationwide

permit FERC relicensing Thermal imaging Interstate issues