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RIO ARRIBA

PR — Community Water System — PWSID: PR0002842

System Information

PWSIDPR0002842
System NameRIO ARRIBA
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region02
Serves SchoolNo
WholesalerNo
First ReportedMar 1, 1980
Last ReportedDec 23, 2025

Location & Contact

StatePR
CityARECIBO
ZIP Code00612
AddressCARR. 10 KM. 65.4 INT.
OrganizationRIO ARRIBA
Phone787-620-2277

Population & Service

Population Served753
Service Connections282

Drinking Water Violations (273)

This water system has 273 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 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
Feb 1, 2023 Feb 28, 2023 Surface Water Treatment Rule MR No No — — — Resolved Feb 28, 2023 Surface Water Treatment Rule
Feb 1, 2023 Feb 28, 2023 Surface Water Treatment Rule MR No No — — — Resolved Feb 28, 2023 Surface Water Treatment Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Jul 4, 2022 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 10, 2020 Consumer Confidence Rule
Feb 1, 2019 Feb 28, 2019 Revised Total Coliform Rule MON No No — — — Resolved Feb 28, 2019 Revised Total Coliform Rule
Feb 1, 2019 Feb 28, 2019 Revised Total Coliform Rule MON No No — — — Resolved Feb 28, 2019 Revised Total Coliform Rule
Feb 1, 2019 Feb 28, 2019 Revised Total Coliform Rule MON No No — — — Resolved Feb 28, 2019 Revised Total Coliform Rule
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
Jun 1, 2018 Jun 30, 2018 Surface Water Treatment Rule MR No Yes — — — Archived Jun 30, 2018 Surface Water Treatment Rule
May 1, 2018 May 31, 2018 Surface Water Treatment Rule MR No Yes — — — Archived May 31, 2018 Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Surface Water Treatment Rule MR No Yes — — — Archived Apr 30, 2018 Surface Water Treatment Rule
Feb 1, 2018 Feb 28, 2018 E. COLI MR No No — — — Resolved Feb 28, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Feb 1, 2018 Feb 28, 2018 E. COLI MR No No — — — Resolved Feb 28, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Mar 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Jan 31, 2018 E. COLI MR No Yes — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 E. COLI MR No Yes — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Mar 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 — Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2018 Lead and Copper Rule
Jan 1, 2015 — Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2018 Lead and Copper Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Aug 20, 2014 Consumer Confidence Rule
Jul 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2018 Lead and Copper Rule
Jul 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2018 Lead and Copper Rule
Jul 1, 2011 — Lead and Copper Rule MR No No — TT — Resolved Dec 31, 2018 Lead and Copper Rule
Jan 1, 2010 Mar 31, 2010 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Chlordane MR No Yes — 0.002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Toxaphene MR No Yes — 0.003 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Chlordane MR No Yes — 0.002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Toxaphene MR No Yes — 0.003 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Endrin MR No Yes — 0.002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Jan 1, 2010 Mar 31, 2010 Endrin MR No Yes — 0.002 mg/L — Resolved Mar 31, 2010 Synthetic Organic Chemicals
Oct 1, 2009 Dec 31, 2009 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Oct 1, 2009 Dec 31, 2009 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Oct 1, 2009 Dec 31, 2009 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Oct 1, 2009 Dec 31, 2009 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 Volatile 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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