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Of the 17 permits in EPA's SIC 4911 in SC, 3 went over a limit between 2025-10-01 and 2026-09-30 (Length of longest pH excursion: 1; Solids, total suspended: 1; Temperature, water deg. fahrenheit: 1). 14 are past the expiry date EPA's file holds; 1 has a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All South Carolina permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| AMERESCO SC0049107 · Electric Services | Over a limit 1×: Length of longest pH excursion (1×) | Permit past the expiry date EPA's file holds |
| Dominion Energy South Carolina, Inc. SC0000574 · major · Electric Services | Over a limit 1×: Temperature, water deg. fahrenheit (1×) | Permit past the expiry date EPA's file holds |
| South Carolina Public Service Authority - Santee Cooper SC0048135 · major · Electric Services | Over a limit 1×: Solids, total suspended (1×) | Permit past the expiry date EPA's file holds |
| (Unknown Permittee) SC0002038 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| (Unknown Permittee) SC0002925 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| DOMINION ENERGY SOUTH CAROLINA INC SC0030856 · major · Electric Services | No value over a limit | Renewal application due Mar 4, 2027 |
| DUKE ENERGY CAROLINAS LLC SC0049140 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Dominion Energy South Carolina, Inc. SC0002020 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Dominion Energy South Carolina, Inc. SC0002046 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Dominion Energy South Carolina, Inc. SC0045772 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Duke Energy Carolinas LLC - Catawba Nuclear Station SC0004278 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Duke Energy Carolinas, LLC SC0002291 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| Duke Energy Carolinas, LLC - Oconee Nuclear Station SC0000515 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| SANTEE COOPER SC0001091 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| South Carolina Generating Company, Inc. SC0003883 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| South Carolina Public Service Authority (Santee Cooper) SC0022471 · major · Electric Services | No value over a limit | Expires Jun 30, 2030 |
| South Carolina Public Service Authority (Santee Cooper) SC0037401 · major · Electric Services | No value over a limit | Expires Feb 28, 2029 |
The record is EPA's ICIS-NPDES file of 2026-10-15: values filed against each limit between Oct 1, 2025 and Sep 30, 2026. No reports on file may be EPA's gap, not the facility's.
For programs and AI agents: this screen as JSON at /api/v1/permits?state=SC&sic=4911, narrowed with &over_limit=true, ¶meter=phosphorus or &renewal=due; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt
From EPA's ECHO data, not the permit document itself: your permit is the final word. All states