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American Rock Salt Co

Chemical And Fertilizer Mining, Groveland, New York. NPDES permit NY0245879 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 10 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (6 values), form B monthly (6 values), form M monthly (15 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
11 values over a limit, 0 required values missing, 0 of 36 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
November 2025BOD, 5-day, 20 deg. C, daily maximum89 mg/L≤ 50 mg/L78%
November 2025Nitrite + Nitrate total [as N], daily maximum44.6 mg/L≤ 20 mg/L123%
November 2025Nitrogen, ammonia, total [as NH3], daily maximum46.4 mg/L≤ 35 mg/L33%
December 2025Nitrite + Nitrate total [as N], daily maximum38 mg/L≤ 20 mg/L90%
April 2026Nitrite + Nitrate total [as N], daily maximum22.3 mg/L≤ 20 mg/L12%
May 2026Cyanide, free [amenable to chlorination], daily maximum1.4 mg/L≤ 1 mg/L40%
May 2026Nitrite + Nitrate total [as N], daily maximum33.4 mg/L≤ 20 mg/L67%
July 2026Cyanide, free [amenable to chlorination], daily maximum1.8 mg/L≤ 1 mg/L80%
July 2026Nitrite + Nitrate total [as N], daily maximum25.5 mg/L≤ 20 mg/L28%
September 2026Cyanide, free [amenable to chlorination], daily maximum1.3 mg/L≤ 1 mg/L30%

Limits in force (27)

ParameterStatisticLimitMonths
Flow ratedaily averagereport only (MGD)all year
Flow ratedaily maximumreport only (MGD)all year
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Nitrogen, Kjeldahl, total [as N]daily maximum≤ 55 mg/Lall year
Nitrite + Nitrate total [as N]daily maximum≤ 20 mg/Lall year
Phosphorus, total [as P]daily maximum≤ 1.5 mg/Lall year
Cyanide, free [amenable to chlorination]daily maximum≤ 1 mg/Lall year
Chloride [as Cl]daily averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Chloride [as Cl]daily averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Chloride [as Cl]daily maximum≤ 250 mg/Lall year
Chloride [as Cl]daily averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Nitrogen, ammonia, total [as NH3]daily maximum≤ 35 mg/Lall year
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Solids, total dissolveddaily averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Solids, total dissolveddaily averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Solids, total dissolveddaily maximum≤ 500 mg/Lall year
Solids, total dissolveddaily averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year

How strict are these limits?

Cited limits by parameter: New York's rules and the federal ones.

Same industry: the 21 Mining and Quarrying of Nonmetallic Minerals permits in New York.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NY0245879 · MCP: https://passage-data.com/mcp