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COQUI

PR — Community Water System — PWSID: PR0004915

System Information

PWSIDPR0004915
System NameCOQUI
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
CitySALINAS
ZIP Code00751
AddressCARR. 3
OrganizationCOQUI
Phone787-620-2277

Population & Service

Population Served6,307
Service Connections2,362

Drinking Water Violations (419)

This water system has 419 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
Jul 1, 2024 Sep 30, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 2024 Nitrate Rule
Jul 1, 2024 Sep 30, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 2024 Nitrate Rule
Jul 1, 2024 Sep 30, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 2024 Nitrate Rule
Jul 1, 2024 Sep 30, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 2024 Nitrate Rule
Apr 1, 2024 Jun 30, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2024 Nitrate Rule
Apr 1, 2024 Jun 30, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 6, 2020 Consumer Confidence Rule
Jul 1, 2019 Sep 30, 2019 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Sep 30, 2019 Synthetic Organic Chemicals
Jul 1, 2019 Sep 30, 2019 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2019 Synthetic Organic Chemicals
Oct 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Aug 13, 2019 Consumer Confidence Rule
Oct 1, 2018 — Consumer Confidence Rule Other No No — — — Resolved Aug 13, 2019 Consumer Confidence Rule
Apr 1, 2018 Jun 30, 2018 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Atrazine MR No Yes — 0.003 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Atrazine MR No Yes — 0.003 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Endrin MR No Yes — 0.002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2018 Synthetic Organic Chemicals
Apr 1, 2018 Jun 30, 2018 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2018 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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