# Granite Canyon Quarry
> **Administrative - Formal** · FY2024 · — · Final Order No Penalty
## Case
- **Activity ID:** `3604132614`
- **Case Number:** 08-2024-0251
- **Type:** Administrative - Formal
- **Lead:** EPA
- **Outcome:** Final Order No Penalty
- **Penalty assessed:** —
- **Cost recovery:** —
- **Compliance action $:** —
- **Multimedia (multi-env):** —
## Defendants
- Martin Marietta Materials, Inc. (complaint) (settlement)
## Summary

The maximum contaminant level (MCL) for nitrate is 10 milligrams per liter (mg/L), with compliance to be based on the average of an initial and a confirmation. The initial sample, taken atSS02/SP02 on May 22, 2024, was 19.8 mg/L, and the confirmation sample, taken at the same location on June 3, 2024, was 2 mg/L. The average of the initial sample and the confirmation sample is 10.9 mg/L, and therefore, Respondent violated the nitrate MCL.

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*Source: [EPA ECHO](https://echo.epa.gov/) · AI Analytics · CC0 1.0*