Stormwater EPA Questions And Answers
What pollutants usually sampled for Stormwater permits require the development of
minimum control measures called what?: MS4's for stormwater permits and BMPs for industrial
stormwater permits
How does stormwater effect construction sites Stormwater flows ...
What pollutants usually sampled for Stormwater permits require the development of
minimum control measures called what?: MS4's for stormwater permits and BMPs for industrial
stormwater permits
How does stormwater effect construction sites Stormwater flows over construction sites,
picking up pollutants that can then harm or kill fish/wildlife
NPDES Stormwater Program requires sites of what size sites to obtain authorization to discharge
stormwater? One Acre or larger
What is the focus of the NPDES Stormwater Permits? Stormwater Pollution Prevention
Plans
EPA Construction General Permit (CGP) Outlines a set of provisions that construction
operators must follow to comply with the requirements of the NPDES stormwater regulations.
In California who issues NPDES permits for discharges into federal ocean water? EPA
, Stormwater EPA Questions And Answers
In California what entity handles permits for discharges into non-federal waters? CalEPA
What are the basic requirements of a CGP 1) Read entire CGP, 2) Develop a Stormwater
Pollution Prevention Plan (SWPPP), 3) Complete and submit a Notice of Intent (NOI), 4) Install
and maintain erosion and sediment controls throughout the entire construction project, 5)
Implement pollution prevention controls, 6) Conduct inspections on the site based on established
timeframe, 7) Take Corrective action to address any issue with your stormwater controls or
discharges, 8) Keep SWPPP up to date, 9) Comply with any state, requirements, 10) Keep a copy
of permit on site, and 11) Submit a notice of termination once your site is permanently stabilized
or control of site has been transferred to another operator, 12) Retain records for at least 3 years
after NOT
Stormwater Pollution Prevention Plan aims to do what? Serve as a roadmap for how you
will control you stormwater discharges and comply with the permit
Part 1.1.5 and appendix D of the 2017 CGP Requires? You to determine the eligibility
with regard to protection of threatened and endangered species and designated critical habitat.
, Stormwater EPA Questions And Answers
Part 1.1.6 and Appendix E of the 2017 CGP Requires? You to complete the screening
process with regard to protection of historic properties before you submit an NOI for permit
coverage.
What size construction sites can apply for a waiver of NPDES permit coverage? Sites that
disturb 5 acres or less
What are the three circumstances that small construction sites can apply for permit waiver?
Rainfall erosivity factor of less than five, Approved or Established Total Maximum Daily
Loads (TMDLs) can be shown to be low enough to not require stormwater control, Or an
equivalent analysis is developed that determines that such allocations are not needed to protect
water quality.
What is the equivalent analysis based on? Existing in-stream concentration, expected
growth in pollutant concentrations from all sources and a margin of safety.
At what point do EPA CGP operators need to report noncompliance? Anytime the instance
of noncompliance might endanger public health or the environment, must be reported to the EPA
regional contact
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