Paris - Violation Details

Violation Details

------------------------------------------------------

Facility Name:	Everett Water Pollution Control Facility
Permit:	WA0024490
Category:	Numeric effluent violation
Type:	Effluent Violations
Date:	9/1/2024

Notes:	Leung: Due to high flows from the end of August, the chlorine contact time was shorter in the first week of this month. The effluent fecal coliform levels were elevated during that week. Then they reduced flows from the Primary Clarifiers to Trickling Filer/Solids Contact System resulting in increasing detention time in the chlorine contact channels. The effluent fecal coliform levels were back to normal. They also took additional effluent samples (fecal coliform, total residual chlorine (TRC)) at the downstream effluent line near the Port Gardner site and compared the sampling results at the South Effluent Pump Station (SEPS). Please see their DMR attachments for data summary. At SEPS location, monitoring data met TRC limits but not fecal coliform weekly Geometric Mean limit. At downstream effluent line location, monitoring data met fecal coliform limits and TRC limits.

Notes:

Leung: Due to high flows from the end of August, the chlorine contact time was shorter in the first week of this month. The effluent fecal coliform levels were elevated during that week. Then they reduced flows from the Primary Clarifiers to Trickling Filer/Solids Contact System resulting in increasing detention time in the chlorine contact channels. The effluent fecal coliform levels were back to normal. They also took additional effluent samples (fecal coliform, total residual chlorine (TRC)) at the downstream effluent line near the Port Gardner site and compared the sampling results at the South Effluent Pump Station (SEPS). Please see their DMR attachments for data summary. At SEPS location, monitoring data met TRC limits but not fecal coliform weekly Geometric Mean limit. At downstream effluent line location, monitoring data met fecal coliform limits and TRC limits.

---------------------------------------------------------
Monitoring Data

Parameter :	Fecal Coliform
Fraction:	Not Applicable
Units:	#/100ml
Statistical Base:	Weekly Geometric Mean
Sample Type:	Grab
Non Report Reason:	-
BenchMark Min:	- Max:-
Limit Min:	- Max:400
Design:	-
Design Warning:	-
Value:	480
Violation Override:	-

----------------------------------------------------
Related Enforcements

The process of tracking how violations and triggers are addressed through the system is new to PARIS. All of the historical violations which were addressed will not have a related enforcement.