Clean Water Act discharge permit · NPDES IL0021989
SPRING CREEK STP, Springfield, IL: NPDES IL0021989 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 38Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
SPRING CREEK STP, held by SANGAMON COUNTY WATER REC DISTRICT, holds NPDES permit IL0021989, which discharges to Sangamon River. EPA’s file records it issued August 22, 2019 and expiring August 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | SPRING CREEK STP |
|---|---|
| Permittee as filed | SANGAMON COUNTY WATER REC DISTRICT |
| NPDES ID | IL0021989 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 22, 2019 |
| Expiration date | August 31, 2024 |
| Address | Springfield, IL 62707 |
| Receiving water | SANGAMON RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Archer Creek-Spring Creek (HUC 071300080203) |
| Other EPA IDs (FRS) | RCRA handler ILD021170170 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 42Pollutants on file
- 38Under a numeric limit
- 38With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 192 | 191 | July 31, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 51 | 57 | 36 | March 31, 2026 | 181% over the limit |
| Chlorine, total residual | 2 | 26 | 23 | October 31, 2022 | 250% over the limit |
| Solids, total suspended | 6 | 35 | 21 | September 30, 2024 | 158% over the limit |
| Oxygen, dissolved [DO] | 5 | 21 | 21 | June 30, 2011 | 50% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 35 | 16 | September 30, 2024 | 99,999% over the limit |
| pH | 4 | 10 | 6 | August 31, 2018 | |
| Phosphorus, total [as P] | 4 | 11 | 4 | November 30, 2017 | 25% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 28 | 0 | ||
| Flow | 0 | 18 | 0 | ||
| Boron, total [as B] | 2 | 7 | 0 | ||
| Oil & Grease | 4 | 2 | 0 | ||
| Cyanide, total [as CN] | 4 | 2 | 0 | ||
| Cyanide, free [amenable to chlorination] | 4 | 2 | 0 | ||
| Fluoride, total [as F] | 4 | 2 | 0 | ||
| Arsenic, total [as As] | 4 | 2 | 0 | ||
| Barium, total [as Ba] | 4 | 2 | 0 | ||
| Beryllium, total [as Be] | 4 | 2 | 0 | ||
| Cadmium, total [as Cd] | 4 | 2 | 0 | ||
| Chromium, hexavalent [as Cr] | 4 | 2 | 0 | ||
| Chromium, total [as Cr] | 4 | 2 | 0 | ||
| Copper, total [as Cu] | 4 | 2 | 0 | ||
| Iron, total [as Fe] | 4 | 2 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 2 | 0 | ||
| Lead, total [as Pb] | 4 | 2 | 0 | ||
| Manganese, total [as Mn] | 4 | 2 | 0 | ||
| Thallium, total [as Tl] | 4 | 2 | 0 | ||
| Nickel, total [as Ni] | 4 | 2 | 0 | ||
| Silver, total [as Ag] | 4 | 2 | 0 | ||
| Zinc, total [as Zn] | 4 | 2 | 0 | ||
| Antimony, total [as Sb] | 4 | 2 | 0 | ||
| Selenium, total [as Se] | 4 | 2 | 0 | ||
| Phenolics, total recoverable | 4 | 2 | 0 | ||
| Mercury, total [as Hg] | 4 | 2 | 0 | ||
| 1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS) | 0 | 2 | 0 | ||
| 1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS) | 0 | 2 | 0 | ||
| 1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS) | 0 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 1 | 0 | ||
| Overflows | 6 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Flow, recycled | 1 | 0 | 0 | ||
| Flow, total | 1 | 0 | 0 |
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
- 17Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 10, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| January 19, 2026 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| April 23, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| April 22, 2025 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 6, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| April 5, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| April 4, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 23, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 15, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 5, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| March 5, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| February 9, 2025 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| January 29, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| January 28, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| January 24, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| January 11, 2025 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
| December 3, 2024 | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not 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.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.