Clean Water Act discharge permit · NPDES IA0042641
CEDAR RAPIDS CITY OF STP, Cedar Rapids, IA: NPDES IA0042641 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
CEDAR RAPIDS CITY OF STP, held by CITY OF CEDAR RAPIDS, holds NPDES permit IA0042641. EPA’s file records it issued June 1, 2017 and expiring May 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CEDAR RAPIDS CITY OF STP |
|---|---|
| Permittee as filed | CITY OF CEDAR RAPIDS |
| NPDES ID | IA0042641 |
| 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 | June 1, 2017 |
| Expiration date | May 31, 2022 |
| Issuing agency | STA |
| Address | Cedar Rapids, IA 52403 |
| Subwatershed | Pleasant Run-Cedar River (HUC 070802060401) |
| Program components on file | Biosolids, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler IAD000690230; ICIS-AIR source IALIN0001911300044 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 29Pollutants on file
- 24Under a numeric limit
- 22With a violation of any kind
- 12With 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 | 22 | 178 | 72 | March 31, 2019 | 245% over the limit |
| Selenium, total [as Se] | 8 | 97 | 25 | December 31, 2017 | 183% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 25 | 25 | August 31, 2010 | 59% over the limit |
| Copper, total [as Cu] | 12 | 125 | 21 | September 30, 2020 | 380% over the limit |
| Chlorine, total residual | 12 | 124 | 20 | April 30, 2024 | 3,333% over the limit |
| Cyanide, total [as CN] | 8 | 83 | 13 | October 31, 2024 | 68% over the limit |
| Nitrogen, ammonia per cfs of streamflow | 72 | 59 | 11 | March 31, 2024 | 53,275% over the limit |
| Cadmium, total [as Cd] | 8 | 76 | 6 | January 31, 2022 | 67% over the limit |
| BOD, carbonaceous [5-day, 20 C][streamflow] | 4 | 41 | 6 | March 31, 2024 | 117% over the limit |
| pH | 9 | 60 | 4 | November 30, 2009 | |
| Coliform, fecal general | 0 | 3 | 3 | September 30, 2008 | 99,900% over the limit |
| Zinc, total [as Zn] | 8 | 74 | 2 | July 31, 2014 | 25% over the limit |
| E. coli | 3 | 73 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 16 | 53 | 0 | ||
| Silver, total [as Ag] | 4 | 36 | 0 | ||
| Chloride [as Cl] | 4 | 34 | 0 | ||
| Mercury, total [as Hg] | 0 | 27 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 18 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 7 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 7 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 6 | 0 | ||
| Lead, total [as Pb] | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 25 | 0 | 0 | ||
| Phosphorus, total [as P] | 25 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 15 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 10 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 10 | 0 | 0 | ||
| Streamflow | 3 | 0 | 0 | ||
| Stream flow, instantaneous | 3 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0042641.
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 October 14, 2026.