Non-Compliance
Clean Water Act
HOCKANUM RIVER WATER POLLUTION CONTROL FACILITY
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
-
120 THRALL ROAD
MANCHESTER, CT 06045
View on map ↗ - County
- HARTFORD County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 22132
- Inspections
- 2 · last Feb 26, 2025
- Total Penalties
- $0 · last Jun 3, 2002
- Registry ID
- 110013718183
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.
9
Water (CWA)
Qtrs Non-Compliant
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 | Reporting Violations - Improper/ Incorrect Reporting | Jul 15, 2021 | — | Open |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Jul 27, 2018 | — | Open |
| cwa | Schedule Event unachieved but reported | Jun 30, 1987 | Jun 30, 2002 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 1987 | — | 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 |
|---|---|---|---|---|---|---|
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 16.00 % | 90.00 | +82% | Jun 2025 | Open |
| Ultraviolet light dosage | DMR, Limited - Numeric Violation | 0.00 uW-sec/cm2 | 30.00 | +100% | Aug 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 980.00 MPN/100mL | 410.00 | +139% | Jul 2024 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.52 kg/d | 3.34 | +5% | Mar 2024 | Resolved |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.90 kg/d | 3.34 | +17% | Feb 2024 | Resolved |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 4.11 kg/d | 3.34 | +23% | Jan 2024 | Resolved |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 4.32 kg/d | 3.34 | +29% | Dec 2023 | Resolved |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.61 kg/d | 3.34 | +8% | Nov 2023 | Resolved |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 96.00 % | 100.00 | +4% | Sep 2023 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.83 mg/L | 0.78 | +6% | Jul 2023 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 86.00 % | 100.00 | +14% | Jun 2023 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 4.08 kg/d | 3.34 | +22% | Mar 2023 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.36 kg/d | 3.34 | +1% | Jan 2023 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 98.00 % | 100.00 | +2% | Sep 2022 | Open |
| E. coli | DMR, Limited - Numeric Violation | 727.00 MPN/100mL | 410.00 | +77% | Jul 2022 | Open |
| E. coli | DMR, Limited - Numeric Violation | 517.00 MPN/100mL | 410.00 | +26% | Jun 2022 | Open |
| E. coli | DMR, Limited - Numeric Violation | 613.00 MPN/100mL | 410.00 | +50% | May 2022 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.82 kg/d | 3.34 | +14% | Mar 2022 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.94 kg/d | 3.34 | +18% | Feb 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 133.00 mg/L | 50.00 | +166% | Feb 2022 | Open |
| Solids, suspended percent removal | DMR, Limited - Numeric Violation | -22.02 % | 85.00 | +713% | Feb 2022 | Open |
| Ultraviolet light dosage | DMR, Limited - Numeric Violation | 24.90 uW-sec/cm2 | 30.00 | +17% | Sep 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 145.00 mg/L | 50.00 | +190% | Sep 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 687.00 MPN/100mL | 410.00 | +68% | Jul 2021 | Open |
| E. coli | DMR, Limited - Numeric Violation | 921.00 MPN/100mL | 410.00 | +125% | Jun 2021 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.78 kg/d | 3.34 | +13% | Feb 2021 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.70 kg/d | 3.34 | +11% | Jan 2021 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 98.00 % | 100.00 | +2% | Dec 2020 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 0.00 % | 100.00 | +100% | Sep 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.79 mg/L | 0.78 | +1% | Aug 2020 | Open |
| Phosphorus, total [as P] | DMR, Limited - Numeric Violation | 0.45 mg/L | 0.39 | +15% | Aug 2020 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 22.00 % | 100.00 | +78% | Jun 2020 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.36 kg/d | 3.34 | +1% | Feb 2019 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 6.60 mg/L | 7.00 | +6% | Nov 2018 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.67 kg/d | 3.34 | +10% | Feb 2018 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 94.00 % | 100.00 | +6% | Dec 2017 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.77 kg/d | 3.34 | +13% | Apr 2017 | Open |
| Zinc, total [as Zn] | DMR, Limited - Numeric Violation | 3.49 kg/d | 3.34 | +4% | Feb 2017 | Open |
| NOAEL Static 48Hr Acute D. pulex | DMR, Limited - Numeric Violation | 94.00 % | 100.00 | +6% | Sep 2016 | Open |
| NOAEL Static 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 98.00 % | 100.00 | +2% | Dec 2015 | 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.
Administrative - Formal
· Case 01-2002-0045 · Jun 3, 2002
$3,000
CWA 309A AO For Compliance
Clean Water Act
· Case 01-1993-N033 · May 6, 1993
Civil Judicial Action
Clean Water Act
· Case CT-N00000133 · Mar 22, 1988
State CWA Non Penalty AO
Clean Water Act
· Case CT-N00000038 · Jun 11, 1987
Civil Judicial Action
Clean Water Act
· Case CT-N00000039 · Sep 9, 1986
State CWA Non Penalty AO
Clean Water Act
· Case CT-N00000037 · Aug 5, 1985
CWA 309A AO For Compliance
Clean Water Act
· Case 01-1985-N014 · Jun 17, 1985
Other facilities in HARTFORD County, CT
EAST HARTFORD GH BERLIN WINDWARD
EAST HARTFORD, CT
· Wholesale Trade
HP HOOD ICE CREAM PLANT
SUFFIELD, CT
· Manufacturing
ROCKY HILL WATER POLLUTION CONTROL FACILITY
ROCKY HILL, CT
DATTCO, INC.
SOUTH WINDSOR, CT
MESTEK SOUTH WINDSOR
SOUTH WINDSOR, CT
· Manufacturing
GERBER SCIENTIFIC, INC.
SOUTH WINDSOR, CT