What Generates Stormwater discharge? - ANSWERDischarge is generated by runoff from land and impervious areas such as paved streets, parking lots, and building rooftops during rainfall and snow events that often contain pollutants in quantities that could adversely affect water quality.
Types of ...
Stormwater EPA Questions &
Answers(RATED A+)
What Generates Stormwater discharge? - ANSWERDischarge is generated by runoff from land and
impervious areas such as paved streets, parking lots, and building rooftops during rainfall and snow
events that often contain pollutants in quantities that could adversely affect water quality.
Where to sample - ANSWERPipes (catch basin or outfall), Open Ditch or a sheet flow. Stormwater
discharge is representative of your wholes sites pollution. Sampling sites must be noted on permit
site map
Tools needed for sampling - ANSWERBottle, Gloves, IceBox, pen, pH paper, and an extension rod.
Things you are sampling for - ANSWERTurbidity(cloudiness), pH, Total Zn, Total Copper, and Oil Sheen
What pollutants usually sampled for - ANSWERStormwater 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 - ANSWERStormwater 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? - ANSWEROne Acre or larger
What is the focus of the NPDES Stormwater Permits? - ANSWERStormwater Pollution Prevention
Plans
What are the three circumstances that small construction sites can apply for permit waiver? -
ANSWERRainfall 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? - ANSWERExisting in-stream concentration, expected
growth in pollutant concentrations from all sources and a margin of safety.
EPA Construction General Permit (CGP) - ANSWEROutlines 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? - ANSWEREPA
In California what entity handles permits for discharges into non-federal waters? - ANSWERCalEPA
What are the basic requirements of a CGP - ANSWER1) 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? - ANSWERServe 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? - ANSWERYou to determine the eligibility with
regard to protection of threatened and endangered species and designated critical habitat.
Part 1.1.6 and Appendix E of the 2017 CGP Requires? - ANSWERYou 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? - ANSWERSites that
disturb 5 acres or less
At what point do EPA CGP operators need to report noncompliance? - ANSWERAnytime the instance
of noncompliance might endanger public health or the environment, must be reported to the EPA
regional contact
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