Clean Water Act discharge permit · NPDES NE0000787
ASH GROVE CEMENT CO, Louisville, NE: NPDES NE0000787 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
ASH GROVE CEMENT CO holds NPDES permit NE0000787, which discharges to Platte River. EPA’s file records it issued June 19, 2017 and expiring June 30, 2022.
ASH GROVE CEMENT CO, Louisville, Nebraska: Individual permit NE0000787; Administratively continued (past its expiration date and still in force until reissued); issued June 19, 2017, term to June 30, 2022; discharges to PLATTE RIVER.
- Solids, total suspended: 12 limits, 73 violations of any kind, 65 effluent exceedances, latest June 30, 2024, largest 3,440% over the limit.
- BOD, 5-day, 20 deg. C: 0 limits, 52 violations of any kind, 48 effluent exceedances, latest May 31, 1996, largest 99,999% over the limit.
- Temperature, water deg. fahrenheit: 2 limits, 5 violations of any kind, 1 effluent exceedance, latest September 30, 2010, largest 99,999% over the limit.
- Oil & grease [freon extr.-IR meth] tot, RC: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest October 31, 1995, largest 12% over the limit.
- Flow, in conduit or thru treatment plant: 12 limits, 14 violations of any kind, 0 effluent exceedances.
- pH: 12 limits, 13 violations of any kind, 0 effluent exceedances.
- Lead, dissolved [as Pb]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Thallium, dissolved [as Tl]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Zinc, dissolved [as Zn]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Antimony, dissolved [as Sb]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Selenium, dissolved [as Se]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Selenium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- March 17, 2026: Evaluation (E).
- March 17, 2026: Evaluation (E).
ASH GROVE CEMENT CO among its neighbors
EPA’s permit file holds 2 discharge permits in the Mill Creek-Platte River subwatershed (HUC 102002020205), NE0000787 among them. Its county holds 21, 1 of them major permits; NE0000787 is a minor permit.
Other permits in the Mill Creek-Platte River subwatershed (HUC 102002020205)
- LOUISVILLE WASTEWATER TREATMENT FACILITY, Louisville: NE0024228, minor permit, discharging to PLATTE RIVER, permit term to March 31, 2026
Identity
| Facility as filed | ASH GROVE CEMENT CO |
|---|---|
| Permittee as filed | ASH GROVE CEMENT CO |
| NPDES ID | NE0000787 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 19, 2017 |
| Expiration date | June 30, 2022 |
| Address | Louisville, NE 68037 |
| Receiving water | PLATTE RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mill Creek-Platte River (HUC 102002020205) |
| Other EPA IDs (FRS) | RCRA handler NED007260672; ICIS-AIR source NE0000003102500002 |
Effluent limits and exceedances
- 12Pollutants on file
- 5Under a numeric limit
- 11With a violation of any kind
- 4With 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 | 12 | 73 | 65 | June 30, 2024 | 3,440% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 52 | 48 | May 31, 1996 | 99,999% over the limit |
| Temperature, water deg. fahrenheit | 2 | 5 | 1 | September 30, 2010 | 99,999% over the limit |
| Oil & grease [freon extr.-IR meth] tot, RC | 0 | 1 | 1 | October 31, 1995 | 12% over the limit |
| Flow, in conduit or thru treatment plant | 12 | 14 | 0 | ||
| pH | 12 | 13 | 0 | ||
| Lead, dissolved [as Pb] | 0 | 2 | 0 | ||
| Thallium, dissolved [as Tl] | 0 | 2 | 0 | ||
| Zinc, dissolved [as Zn] | 0 | 2 | 0 | ||
| Antimony, dissolved [as Sb] | 0 | 2 | 0 | ||
| Selenium, dissolved [as Se] | 0 | 2 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NE0000787.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| March 17, 2026 | Evaluation | E |
| March 17, 2026 | Evaluation | E |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES NE0000787.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.