Non-Compliance
Clean Air Act
Clean Water Act
RCRA
CONCORD WASTEWATER TREATMENT 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
-
125 HALL ST
CONCORD, NH 03301
View on map ↗ - County
- MERRIMACK County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221320
- Inspections
- 4 · last Feb 19, 2026
- Total Penalties
- $0
- Registry ID
- 110023120923
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.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
4
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
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 | PR: Failure to sample at least 80% of SIU/CIUs within the past 12 month reporting period (Level II) | Mar 31, 2025 | — | Open |
| cwa | PR: Failure to inspect at least 80% of SIU/CIUs within the past 12 month reporting period (Level II) | Mar 31, 2025 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Mar 13, 2024 | — | Open |
| cwa | PR: Biosolids: Other Management Practice Violation | Jan 1, 2019 | Sep 30, 2020 | Resolved |
| cwa | Schedule Event achieved late but reported | Feb 19, 2003 | — | 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 |
|---|---|---|---|---|---|---|
| LC50 Static 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 80.60 % | 100.00 | +19% | Mar 2026 | Open |
| LC50 Static 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 80.60 % | 100.00 | +19% | Mar 2025 | Open |
| LC50 Static 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 57.40 % | 100.00 | +43% | Mar 2024 | Open |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 75.20 % | 100.00 | +25% | Mar 2024 | Open |
| E. coli | DMR, Limited - Numeric Violation | 461.10 MPN/100mL | 406.00 | +14% | Sep 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 2,419.60 MPN/100mL | 406.00 | +99,999% | Aug 2023 | Open |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 70.70 % | 100.00 | +29% | Mar 2023 | Open |
| E. coli | DMR, Limited - Numeric Violation | 648.80 MPN/100mL | 406.00 | +60% | Sep 2022 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 70.70 % | 100.00 | +29% | Jun 2022 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 65.20 % | 100.00 | +35% | Jun 2022 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 68.30 % | 100.00 | +32% | Mar 2022 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 75.20 % | 100.00 | +25% | Mar 2022 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 59.50 % | 100.00 | +41% | Mar 2021 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 86.60 % | 100.00 | +13% | Jun 2019 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 70.70 % | 100.00 | +29% | Mar 2019 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 35.40 % | 100.00 | +65% | Mar 2019 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 31.90 % | 100.00 | +68% | Dec 2018 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 62.60 % | 100.00 | +37% | Sep 2018 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 70.70 % | 100.00 | +29% | Sep 2018 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 69.50 % | 100.00 | +31% | Jun 2018 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 70.70 % | 100.00 | +29% | Jun 2018 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 96.60 % | 100.00 | +3% | Mar 2018 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 61.60 % | 100.00 | +38% | Mar 2018 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 97.40 % | 100.00 | +3% | Sep 2017 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 73.50 % | 100.00 | +27% | Jun 2017 | Open |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | DMR, Limited - Numeric Violation | 37.90 % | 100.00 | +62% | Mar 2017 | Open |
| E. coli, colony forming units [CFU] | DMR, Limited - Numeric Violation | 920.80 MPN/100mL | 406.00 | +127% | Aug 2016 | Open |
| E. coli, colony forming units [CFU] | DMR, Limited - Numeric Violation | 1,986.30 MPN/100mL | 406.00 | +389% | Mar 2016 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 72.30 % | 100.00 | +28% | Jun 2015 | Open |
| LC50 Static Renewal 48Hr Acute Pimephales promelas | DMR, Limited - Numeric Violation | 81.00 % | 100.00 | +19% | Mar 2015 | Open |
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