Qualifying Storm Event (QSE) is a precipitation event that: • Produces a discharge for at least one drainage area; and, • Is preceded by 48 hours with no discharge from any drainage area. Samples from each discharge location shall be collected within four (4) hours of: a. The start of the discharge; or, b. The start of facility operations if the QSE occurs within the previous 12-hour period (e.g., for storms with discharges that begin during the night for facilities with day-time operating hours). Sample collection is required during scheduled facility operating hours and when sampling conditions are safe in accordance with Section XI.C.6.a.ii.
The pH test needs to be done within the first 15 minutes. The acceptable pH should be between 6-9. Please take a picture of the pH paper immediately. PH paper is acceptable. If you have a pH meter, it can support the pH paper color interpretation, but supporting calibration record is required for using a meter. Using pH litmus paper is acceptable.
NSWD is a Non Storm Water Discharge (in a nutshell, a NSWD is something other than rain creating a water discharge.
Is there anything else that should be noted?
How many storm drains or other discharge locations are at the Facility? (This should match what is in your SWPPP)
If there are sample deficiencies at any location, click the corresponding circle and describe the problem below.
If the filtration is missing, needs maintenance, or is just not working, describe.
If the filtration is missing, needs maintenance, or is just not working, describe.
If the filtration is missing, needs maintenance, or is just not working, describe.
If the filtration is missing, needs maintenance, or is just not working, describe.
If the filtration is missing, needs maintenance, or is just not working, describe.