Non-Compliance Clean Water Act

CHESTER ROCKY CREEK WWTP

Quick Summary

•Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
•Assessed $0 in total penalties since records began.

Address: .5 MI OFF B.LINE RD @ INTERSE
CHESTER, SC 29706
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County: CHESTER County
Industry: Utilities
NAICS (North American Industry Classification): 221320
Inspections: 3 · last Jul 29, 2025
Total Penalties: $0 · last Nov 21, 2006
Registry ID: 110039825302

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

Water (CWA)
Qtrs Non-Compliant

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program	Type	Violation Date	Return to Compliance	Status
cwa	Pretreatment - Failure to Meet Inspection and Sampling Plan for SIUs	Feb 17, 2026	—	Open
cwa	Schedule Event achieved late but reported	Aug 28, 2009	—	Open
cwa	Schedule Event achieved late but reported	Feb 3, 2006	—	Open

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant	Violation	Reported	Limit	Exceedance	Period	Status
BOD, 5-day, 20 deg. C	DMR, Limited - Numeric Violation	23.50 mg/L	15.00	+57%	Dec 2025	Open
E. coli	DMR, Limited - Numeric Violation	866.40 MPN/100mL	349.00	+148%	Feb 2024	Open
E. coli	DMR, Limited - Numeric Violation	435.20 MPN/100mL	349.00	+25%	Jun 2023	Open
E. coli	DMR, Limited - Numeric Violation	2,419.60 MPN/100mL	349.00	+593%	Oct 2022	Open
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia	DMR, Limited - Numeric Violation	76.40 %	25.00	+206%	Mar 2021	Open
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia	DMR, Limited - Numeric Violation	76.40 %	40.00	+91%	Mar 2021	Open
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia	DMR, Limited - Numeric Violation	98.20 %	25.00	+293%	Dec 2020	Open
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia	DMR, Limited - Numeric Violation	98.20 %	40.00	+146%	Dec 2020	Open

Enforcement Actions

Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.