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LAS PIEDRAS HUMACAO

PR — Community Water System — PWSID: PR0005376

System Information

PWSIDPR0005376
System NameLAS PIEDRAS HUMACAO
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
CityHUMACAO
ZIP Code00791
AddressROAD 198 KM. 28.3
OrganizationLAS PIEDRAS HUMACAO
Phone787-620-2277

Population & Service

Population Served36,032
Service Connections13,495

Drinking Water Violations (244)

This water system has 244 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
Jun 1, 2022 Jun 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2022 Surface Water Treatment Rule
Jun 1, 2022 Jun 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Jun 30, 2022 Surface Water Treatment Rule
Jul 1, 2021 Sep 30, 2021 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2021 Synthetic Organic Chemicals
Jul 1, 2021 Sep 30, 2021 OXAMYL MR No Yes — 0.2 mg/L — Resolved Sep 30, 2021 Synthetic Organic Chemicals
Jul 1, 2021 Sep 30, 2021 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2021 Synthetic Organic Chemicals
Jul 1, 2021 Sep 30, 2021 OXAMYL MR No Yes — 0.2 mg/L — Resolved Sep 30, 2021 Synthetic Organic Chemicals
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Aug 7, 2020 Consumer Confidence Rule
Apr 9, 2019 — Public Notice Other No No — — — Resolved Jul 29, 2020 Public Notice Rule and Revised PN Rule
Apr 9, 2019 — Public Notice Other No No — — — Resolved Jul 29, 2020 Public Notice Rule and Revised PN Rule
Feb 1, 2019 Feb 28, 2019 Cryptosporidium MR No No — — — Resolved Feb 28, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 Turbidity MR No No — TT — Resolved Feb 28, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 Turbidity MR No No — TT — Resolved Feb 28, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 Cryptosporidium MR No No — — — Resolved Feb 28, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 E. COLI MR No No — — — Resolved Feb 28, 2019 Long Term 2 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 E. COLI MR No No — — — Resolved Feb 28, 2019 Long Term 2 Enhanced Surface Water Treatment 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
Apr 1, 2018 Apr 30, 2018 E. COLI MR No No — — — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 E. COLI MR No No — — — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Turbidity MR No No — TT — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Turbidity MR No No — TT — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 E. COLI MR No No — — — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Cryptosporidium MR No No — — — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Cryptosporidium MR No No — — — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Turbidity MR No No — TT — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Cryptosporidium MR No No — — — Resolved Apr 30, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Turbidity MR No No — TT — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Turbidity MR No No — TT — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Turbidity MR No No — TT — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Cryptosporidium MR No No — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Cryptosporidium MR No No — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 E. COLI MR No No — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 E. COLI MR No No — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 E. COLI MR No No — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Cryptosporidium MR No No — — — Resolved Jan 31, 2018 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 Cryptosporidium MR No Yes — — — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 Turbidity MR No Yes — TT — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 Cryptosporidium MR No Yes — — — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 Cryptosporidium MR No Yes — — — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 E. COLI MR No Yes — — — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 Turbidity MR No Yes — TT — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 E. COLI MR No Yes — — — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 Turbidity MR No Yes — TT — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
Jul 1, 2017 Jul 31, 2017 E. COLI MR No Yes — — — Resolved Jul 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 E. COLI MR No Yes — — — Resolved May 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 E. COLI MR No Yes — — — Resolved May 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Turbidity MR No Yes — TT — Resolved May 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Turbidity MR No Yes — TT — Resolved May 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Cryptosporidium MR No Yes — — — Resolved May 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule
May 1, 2017 May 31, 2017 Turbidity MR No Yes — TT — Resolved May 31, 2017 Long Term 2 Enhanced Surface Water Treatment Rule

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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