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CUYON

PR — Community Water System — PWSID: PR0004555

System Information

PWSIDPR0004555
System NameCUYON
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region02
Serves SchoolNo
WholesalerNo
First ReportedMar 1, 1980
Last ReportedDec 23, 2025

Location & Contact

StatePR
CityAIBONITO
ZIP Code00653
AddressCARR. 1 KM69.1
OrganizationCUYON
Phone787-620-2277

Population & Service

Population Served515
Service Connections193

Drinking Water Violations (109)

This water system has 109 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
Oct 1, 2022 Dec 31, 2022 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 LASSO MR No Yes — — — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 LASSO MR No Yes — — — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Toxaphene MR No Yes — 0.003 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2022 Synthetic Organic Chemicals
Oct 1, 2022 Dec 31, 2022 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2022 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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