Clean Water Act discharge permit · NPDES FL0322890
MAZAK LIMEROCK MINE, Webster, FL: NPDES FL0322890 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
MAZAK LIMEROCK MINE, held by Mid Coast Aggregate, holds NPDES permit FL0322890, which discharges to Jumper Cr Class Iii Fresh Wbid 1360. EPA’s file records it issued June 7, 2019 and expiring August 9, 2024. 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 | MAZAK LIMEROCK MINE |
|---|---|
| Permittee as filed | Mid Coast Aggregate |
| NPDES ID | FL0322890 |
| 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 7, 2019 |
| Expiration date | August 9, 2024 |
| Issuing agency | Florida Department of Environmental Protection |
| Address | Webster, FL 33597 |
| Receiving water | Jumper Cr Class III Fresh WBID 1360 |
| Subwatershed | Juniper Creek Canal (HUC 031002080601) |
| NAICS | 212312 – Crushed and Broken Limestone Mining and Quarrying |
| SIC | 1422 – Crushed And Broken Limestone |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 17Pollutants on file
- 10Under a numeric limit
- 14With 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 |
|---|---|---|---|---|---|
| LC50 Static Renewal 96Hr Acute Ceriodaphnia dubia | 3 | 68 | 12 | July 31, 2015 | 100% over the limit |
| LC50 Static Renewal 96Hr Acute Cyprinella leedsi | 3 | 68 | 12 | July 31, 2015 | 100% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 80 | 6 | November 30, 2022 | 60% over the limit |
| Oxygen, dissolved [DO] | 1 | 5 | 5 | July 31, 2022 | 100% over the limit |
| pH | 2 | 64 | 4 | June 30, 2023 | |
| Lead, total recoverable | 0 | 94 | 2 | October 31, 2005 | 99,999% over the limit |
| Turbidity | 1 | 32 | 1 | August 31, 2006 | |
| Specific conductance | 1 | 32 | 1 | August 31, 2005 | 54% over the limit |
| Hardness, total [as CaCO3] | 0 | 31 | 0 | ||
| Fluoride, total [as F] | 0 | 31 | 0 | ||
| Sodium, total recoverable | 0 | 19 | 0 | ||
| Chloride [as Cl] | 0 | 19 | 0 | ||
| Sulfate, total [as SO4] | 0 | 19 | 0 | ||
| Aluminum, total recoverable | 0 | 19 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES FL0322890.
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.