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TRI GENERAL IMPROVEMENT DISTRICT

Nevada — Non-Transient Non-Community — PWSID: NV0000913

System Information

PWSIDNV0000913
System NameTRI GENERAL IMPROVEMENT DISTRICT
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedJan 26, 2001
Last ReportedDec 19, 2025

Location & Contact

StateNevada
CityMCCARRAN
ZIP Code89437
Address440 USA PARKWAY
OrganizationCOOK, MICHELLE
Phone775-636-6126

Population & Service

Population Served13,360
Service Connections238

Drinking Water Violations (817)

This water system has 817 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2023 Mar 31, 2023 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Diquat MR No Yes — 0.02 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 2,4-D MR No Yes — 0.07 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Diquat MR No Yes — 0.02 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Simazine MR No Yes — 0.004 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Picloram MR No Yes — 0.5 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Endrin MR No Yes — 0.002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Dinoseb MR No Yes — 0.007 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 LASSO MR No Yes — — — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Dinoseb MR No Yes — 0.007 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Picloram MR No Yes — 0.5 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Endothall MR No Yes — 0.1 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Endothall MR No Yes — 0.1 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Dinoseb MR No Yes — 0.007 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Picloram MR No Yes — 0.5 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Diquat MR No Yes — 0.02 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 2,4-D MR No Yes — 0.07 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 2,4-D MR No Yes — 0.07 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Endrin MR No Yes — 0.002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 LASSO MR No Yes — — — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Simazine MR No Yes — 0.004 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 LASSO MR No Yes — — — Resolved Mar 31, 2023 Synthetic Organic Chemicals
Jan 1, 2023 Mar 31, 2023 Simazine MR No Yes — 0.004 mg/L — Resolved Mar 31, 2023 Synthetic Organic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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