East Montana Water System
EPA ID: TX0710178 · 6,513 people served · 138 ZIP codes
ZipCheckup's reading of EPA SDWIS for East Montana Water System (TX0710178): no EPA violations recorded in the last five years. For the full five-year period covered by EPA monitoring, East Montana Water System has supplied tap water to 6,513 residents with no violations of any type on record.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 139 (2024) to 3 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for East Montana Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The East Montana Water System serves a community with a median household income of $57,261 and an estimated 815,636 residents across its service area. Approximately 54% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 69% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
East Montana Water System's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 73 detections recorded. 10 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Comparable Water Systems
Similar-sized systems in Texas
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
East Montana Water System (EPA ID: TX0710178) is a community water system in Texas that serves approximately 6,513 people from surface water sources.
This system provides water to 138 ZIP codes across 1 community.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 137 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 138 ZIP codes:
79901 · 79902 · 79903 · 79904 · 79905 79906 · 79907 · 79908 · 79910 · 79911 79912 · 79913 · 79914 · 79915 · 79917 79920 · 79922 · 79923 · 79924 · 79925 79926 · 79927 · 79928 · 79929 · 79930 79931 · 79932 · 79934 · 79935 · 79936 79937 · 79938 · 79940 · 79941 · 79942 79943 · 79944 · 79945 · 79946 · 79947 79948 · 79949 · 79950 · 79951 · 79952 79953 · 79954 · 79955 · 79958 · 79960 79961 · 79968 · 79976 · 79978 · 79980 79990 · 79995 · 79996 · 79997 · 79998 79999 · 88510 · 88511 · 88512 · 88513 88514 · 88515 · 88516 · 88517 · 88518 88519 · 88520 · 88521 · 88523 · 88524 88525 · 88526 · 88527 · 88528 · 88529 88530 · 88531 · 88532 · 88533 · 88534 88535 · 88536 · 88538 · 88539 · 88540 88541 · 88542 · 88543 · 88544 · 88545 88546 · 88547 · 88548 · 88549 · 88550 88553 · 88554 · 88555 · 88556 · 88557 88558 · 88559 · 88560 · 88561 · 88562 88563 · 88565 · 88566 · 88567 · 88568 88569 · 88570 · 88571 · 88572 · 88573 88574 · 88575 · 88576 · 88577 · 88578 88579 · 88580 · 88581 · 88582 · 88583 88584 · 88585 · 88586 · 88587 · 88588 88589 · 88590 · 88595
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for East Montana Water System (TX0710178) on EPA.gov.
Frequently Asked Questions
Is East Montana Water System water safe to drink?
Based on EPA records, East Montana Water System has no recorded violations in the past 5 years - a positive indicator of water quality management.
How many people does East Montana Water System serve?
East Montana Water System serves approximately 6,513 people across 138 ZIP codes in Texas.
Where does East Montana Water System get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
How to cite this page
ZipCheckup. (2026). East Montana Water System Water Quality Report, TX. https://zipcheckup.com/water-system/tx0710178/
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author = {{ZipCheckup}},
title = {{East Montana Water System Water Quality Report, TX}},
year = {2026},
url = {https://zipcheckup.com/water-system/tx0710178/}
}
Data as of April 2026.