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SALTILLO VACA

PWS ID: PR0004134 · ADJUNTAS, Puerto Rico 00601

SALTILLO VACA serves 804 people in ADJUNTAS, Puerto Rico using Groundwater water sources. It has 125 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SALTILLO VACA

SALTILLO VACA is a local-owned community water system that delivers drinking water to 804 residents in ADJUNTAS, Puerto Rico (Adjuntas Municipio County) through 301 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 125 total violations for this system , of which 2 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 116 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Nitrate, recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Puerto Rico, EPA tracks 458 public water systems serving 3,328,141 people, with 164,144 cumulative violations and 34,657 health-based violations on record. About 100% of systems in the state carry at least one violation, and state-wide the average per system is 358.4 violations. SALTILLO VACA's 125 violations sit below the Puerto Rico average. Statewide, 40 of 99 UCMR5-tested systems have reported PFAS detections (40.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
804
Total Violations
125
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
301
County
Adjuntas Municipio
School/Daycare
No
MCL Violations
2
Monitoring Violations
116
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 6 2023
Combined Radium (-226 and -228) MR 5 2019
Consumer Confidence Rule Other 5 2022
Gross Alpha, Excl. Radon and U MR 5 2019
1,2,4-Trichlorobenzene MR 4 2010
cis-1,2-Dichloroethylene MR 4 2010
Xylenes, Total MR 4 2010
DICHLOROMETHANE MR 4 2010
1,1-Dichloroethylene MR 4 2010
1,2-Dichloroethane MR 4 2010
Carbon tetrachloride MR 4 2010
1,1,2-Trichloroethane MR 4 2010
CHLOROBENZENE MR 4 2010
Toluene MR 4 2010
Ethylbenzene MR 4 2010
Styrene MR 4 2010
Radium-226 MR 4 2019
Lead and Copper Rule MR 4 2016
trans-1,2-Dichloroethylene MR 4 2010
Benzene MR 4 2010
Trichloroethylene MR 4 2010
1,2-Dichloropropane MR 4 2010
o-Dichlorobenzene MR 4 2010
Vinyl chloride MR 4 2010
Tetrachloroethylene MR 4 2010
1,1,1-Trichloroethane MR 4 2010
p-Dichlorobenzene MR 4 2010
Coliform (TCR) MCL 2 1999
Radium-228 MR 2 2019
Combined Uranium MR 2 2019

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for SALTILLO VACA.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID PR0004134 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Puerto Rico Drinking Water Authority

Puerto Rico's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find PR regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2023 Nitrate MR 6 SDWIS / PR0004134 / 1040
2022 Consumer Confidence Rule Other 5 SDWIS / PR0004134 / 7000
2019 Combined Radium (-226 and -228) MR 5 SDWIS / PR0004134 / 4010
2019 Gross Alpha, Excl. Radon and U MR 5 SDWIS / PR0004134 / 4000
2019 Radium-226 MR 4 SDWIS / PR0004134 / 4020
2019 Radium-228 MR 2 SDWIS / PR0004134 / 4030
2019 Combined Uranium MR 2 SDWIS / PR0004134 / 4006
2016 Lead and Copper Rule MR 4 SDWIS / PR0004134 / 5000
2011 Total Haloacetic Acids (HAA5) MR 1 SDWIS / PR0004134 / 2456
2010 1,2,4-Trichlorobenzene MR 4 SDWIS / PR0004134 / 2378
2010 cis-1,2-Dichloroethylene MR 4 SDWIS / PR0004134 / 2380
2010 Xylenes, Total MR 4 SDWIS / PR0004134 / 2955
2010 DICHLOROMETHANE MR 4 SDWIS / PR0004134 / 2964
2010 1,1-Dichloroethylene MR 4 SDWIS / PR0004134 / 2977
2010 1,2-Dichloroethane MR 4 SDWIS / PR0004134 / 2980

How SALTILLO VACA Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric SALTILLO VACA Puerto Rico avg Federal benchmark
Total violations 125 358.4 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 75.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 804 7,267 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 458 regulated public water systems in Puerto Rico.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is SALTILLO VACA water safe to drink? ▼
SALTILLO VACA (PWS ID: PR0004134) has 125 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 804 people using Groundwater sources.
How many people does SALTILLO VACA serve? ▼
SALTILLO VACA serves 804 people in ADJUNTAS, Puerto Rico. It is a Local-owned system using Groundwater water sources with 301 service connections.
What type of violations does SALTILLO VACA have? ▼
SALTILLO VACA has 125 total violations: 2 health-based violations (MCL exceedances or treatment failures), 116 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SALTILLO VACA water? ▼
No PFAS testing data is available for SALTILLO VACA under the EPA's UCMR5 monitoring program.
What water source does SALTILLO VACA use? ▼
SALTILLO VACA uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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