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Transient Non-Community Water System · PWS PR0468054

Martex Farm Paso Seco

Santa Isabel, Puerto Rico 00757 - drinking water served from groundwater sources to 42 people, tracked in EPA SDWIS and UCMR5.

42
People served
139
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 139 drinking-water violations at Martex Farm Paso Seco, 2% of them health-based - below the Puerto Rico per-system average.

139
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
42
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Martex Farm Paso Seco

Martex Farm Paso Seco is a local-owned transient non-community water system that delivers drinking water to 42 residents in Santa Isabel, Puerto Rico (Santa Isabel Municipio County) through 16 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 139 total violations for this system , of which 3 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 135 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Nitrate, recorded in 11 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. Statewide, 40 of 99 UCMR5-tested systems have reported PFAS detections (40.4%).

Martex Farm Paso Seco's 139 violations sit below the Puerto Rico average.

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
42
Total Violations
139
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Local
Connections
16
County
Santa Isabel Municipio
School/Daycare
No
MCL Violations
0
Monitoring Violations
135
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 11 2024
Lead and Copper Rule MR 8 2020
Coliform (TCR) MR 8 2014
TTHM MR 4 2021
Total Haloacetic Acids (HAA5) MR 4 2021
LEAD AND COPPER RULE REVISIONS TT 3 2024
cis-1,2-Dichloroethylene MR 2 2012
Xylenes, Total MR 2 2012
DICHLOROMETHANE MR 2 2012
Vinyl chloride MR 2 2012
trans-1,2-Dichloroethylene MR 2 2012
1,2-Dichloroethane MR 2 2012
1,1,1-Trichloroethane MR 2 2012
Carbon tetrachloride MR 2 2012
1,2-Dichloropropane MR 2 2012
Trichloroethylene MR 2 2012
1,1,2-Trichloroethane MR 2 2012
CHLOROBENZENE MR 2 2012
Benzene MR 2 2012
Toluene MR 2 2012
Endrin MR 2 2012
Methoxychlor MR 2 2012
Diquat MR 2 2012
Endothall MR 2 2012
Glyphosate MR 2 2012
Di(2-ethylhexyl) adipate MR 2 2012
OXAMYL MR 2 2012
Simazine MR 2 2012
Dinoseb MR 2 2012
Hexachlorocyclopentadiene MR 2 2012

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 Martex Farm Paso Seco.

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 PR0468054 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
2024 Nitrate MR 11 SDWIS / PR0468054 / 1040
2024 LEAD AND COPPER RULE REVISIONS TT 3 SDWIS / PR0468054 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / PR0468054 / 5200
2021 TTHM MR 4 SDWIS / PR0468054 / 2950
2021 Total Haloacetic Acids (HAA5) MR 4 SDWIS / PR0468054 / 2456
2020 Lead and Copper Rule MR 8 SDWIS / PR0468054 / 5000
2014 Coliform (TCR) MR 8 SDWIS / PR0468054 / 3100
2012 cis-1,2-Dichloroethylene MR 2 SDWIS / PR0468054 / 2380
2012 Xylenes, Total MR 2 SDWIS / PR0468054 / 2955
2012 DICHLOROMETHANE MR 2 SDWIS / PR0468054 / 2964
2012 Vinyl chloride MR 2 SDWIS / PR0468054 / 2976
2012 trans-1,2-Dichloroethylene MR 2 SDWIS / PR0468054 / 2979
2012 1,2-Dichloroethane MR 2 SDWIS / PR0468054 / 2980
2012 1,1,1-Trichloroethane MR 2 SDWIS / PR0468054 / 2981
2012 Carbon tetrachloride MR 2 SDWIS / PR0468054 / 2982

How Martex Farm Paso Seco Compares

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

Metric Martex Farm Paso Seco Puerto Rico avg Federal benchmark
Total violations 139 358.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 42 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Martex Farm Paso Seco water safe to drink? ▼
Martex Farm Paso Seco (PWS ID: PR0468054) has 139 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 42 people using Groundwater sources.
How many people does Martex Farm Paso Seco serve? ▼
Martex Farm Paso Seco serves 42 people in Santa Isabel, Puerto Rico. It is a Local-owned system using Groundwater water sources with 16 service connections.
What type of violations does Martex Farm Paso Seco have? ▼
Martex Farm Paso Seco has 139 total violations: 3 health-based violations (MCL exceedances or treatment failures), 135 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Martex Farm Paso Seco water? ▼
No PFAS testing data is available for Martex Farm Paso Seco under the EPA's UCMR5 monitoring program.
What water source does Martex Farm Paso Seco use? ▼
Martex Farm Paso Seco uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.