Nitrate-N cleanup levels by state
- CAS 14797-55-8
- 3 states
CAS 14797-55-8 is in the cleanup-level tables of 3 states in this handbook: Florida (Nitrate), Pennsylvania (NITRATE NITROGEN) and Texas (Nitrate-N). Each state's numbers are below as its agency prints them. The states run different programs and do not define their values the same way, so a number from one is not the same measure as a number from another. A state that lists the substance under another CAS number, or without one, is not shown here.
Florida
- FL DEP
- Chapter 62-777 CTLs
- February 2005
For Nitrate, DEP's cleanup target level tables print 10,000 ug/L as the groundwater criterion and 140,000 mg/kg for residential direct exposure to soil.
- 10,000ug/L 10000 Groundwater Criteria Table I: Groundwater and Surface Water Cleanup Target Levels
- 140,000mg/kg 140000 Direct Exposure - Residential Table II: Soil Cleanup Target Levels
Pennsylvania
- PA DEP
- Act 2 Statewide Health Standards
For NITRATE NITROGEN, DEP's Statewide Health Standard tables print 10,000 ug/L for residential groundwater in a used aquifer with TDS up to 2500.
- 10,000ug/L 10000 R Table 2: Medium-Specific Concentrations (MSCs) for Inorganic Regulated Substances in Groundwater Used Aquifers, TDS ≤ 2500
Texas
- TCEQ
- TRRP Tier 1 PCLs
- February 6, 2025
For Nitrate-N, TCEQ's Tier 1 table prints 130,000 mg/kg for TotSoilComb and no value for GWSoilIng (residential soil, 0.5 acre source area), and 10 mg/L for GWGWIng (residential groundwater).
- 130,000mg/kg 1.3E+05 TotSoilComb Table 1: Tier 1 Residential Soil PCLs 0.5 acre source area
- ─ GWSoilIng Table 1: Tier 1 Residential Soil PCLs 0.5 acre source area
- 10mg/L 1.0E+01 GWGWIng Table 3: Tier 1 Groundwater PCLs - Residential and Commercial/Industrial Residential
Each agency's own publication governs: its current table, or the published rule where the agency says so. This page is a reference copy and not a cleanup decision. Check each agency's page before relying on a value.
Source
- Florida Department of Environmental Protection, Cleanup Target Levels for Chapter 62-777, F.A.C., dated February 2005. Files read October 6, 2026.
- Pennsylvania Department of Environmental Protection, Statewide Health Standard Medium-Specific Concentrations.
- Table 2: DEP's file dated November 15, 2023, read October 5, 2026.
- Texas Commission on Environmental Quality, Texas Risk Reduction Program Tier 1 Protective Concentration Levels, last revised February 6, 2025. File read October 1, 2026.