Clean Water Act discharge permit · NPDES RIR50R020
GENERAL DYNAMICS ELECTRIC BOAT - AMP, North Kingstown, RI: NPDES RIR50R020 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
GENERAL DYNAMICS ELECTRIC BOAT - AMP, held by General Dynamics Electric Boat - AMP Facility, holds NPDES permit RIR50R020. EPA’s file records it issued November 10, 2022 and expiring May 2, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for GENERAL DYNAMICS ELECTRIC BOAT - AMP: its NPDES ID, its permit type and status, its dates, its address in North Kingstown, Rhode Island, and 7 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES RIR50R020.
Identity
| Facility as filed | GENERAL DYNAMICS ELECTRIC BOAT - AMP |
|---|---|
| Permittee as filed | General Dynamics Electric Boat - AMP Facility |
| NPDES ID | RIR50R020 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | November 10, 2022 |
| Expiration date | May 2, 2024 |
| Issuing agency | RIDEM |
| Address | North Kingstown, RI 02852 |
| Subwatershed | Lower West Passage (HUC 010900040908) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 7Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Iron, total [as Fe] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Aluminum, total [as Al] | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES RIR50R020.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES RIR50R020.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, RIR50R020.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID RIR50R020 there.
Nearby on the register
- Discharge permits in North Kingstown
- Every permit record in North Kingstown, A to Z
- Discharge permits in Rhode Island
- Every permit record in Rhode Island, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.