MULLIN INDEPENDENT SCHOOL DISTRICT
PWS ID: TX1670013 · MULLIN, Texas 76864-3023
MULLIN INDEPENDENT SCHOOL DISTRICT serves 130 people in MULLIN, Texas using Groundwater water sources. It has 421 recorded EPA violations, including 204 health-based violations. No PFAS contamination was detected in UCMR5 testing.
Water Quality Snapshot: MULLIN INDEPENDENT SCHOOL DISTRICT
MULLIN INDEPENDENT SCHOOL DISTRICT is a local-owned non-transient non-community water system that delivers drinking water to 130 residents in MULLIN, Texas (Mills County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 421 total violations for this system , of which 204 (48%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 126 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.
The most frequently cited contaminant at this system is Nitrate, recorded in 200 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.
Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. MULLIN INDEPENDENT SCHOOL DISTRICT's 421 violations sit above the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Mills
- School/Daycare
- Yes
- MCL Violations
- 204
- Monitoring Violations
- 126
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 200 | 2025 |
| Chlorine | MR | 51 | 2021 |
| Public Notice | Other | 49 | 2024 |
| Lead and Copper Rule | MR | 42 | 2021 |
| Revised Total Coliform Rule | MON | 27 | 2025 |
| Coliform (TCR) | MCL | 4 | 2006 |
| Nitrate | MR | 4 | 2013 |
| TTHM | MR | 1 | 2007 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2007 |
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 MULLIN INDEPENDENT SCHOOL DISTRICT.
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 TX1670013 on SDWISSource: EPA SDWIS Federal Reports Search
Texas Drinking Water Authority
Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch is the primacy agency that licenses and inspects MULLIN INDEPENDENT SCHOOL DISTRICT under EPA-delegated authority.
Open TX regulator portalSource: Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch
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 |
|---|---|---|---|---|
| 2025 | Nitrate | MCL | 200 | SDWIS / TX1670013 / 1040 |
| 2025 | Revised Total Coliform Rule | MON | 27 | SDWIS / TX1670013 / 8000 |
| 2024 | Public Notice | Other | 49 | SDWIS / TX1670013 / 7500 |
| 2021 | Chlorine | MR | 51 | SDWIS / TX1670013 / 0999 |
| 2021 | Lead and Copper Rule | MR | 42 | SDWIS / TX1670013 / 5000 |
| 2013 | Nitrate | MR | 4 | SDWIS / TX1670013 / 1040 |
| 2007 | TTHM | MR | 1 | SDWIS / TX1670013 / 2950 |
| 2007 | Total Haloacetic Acids (HAA5) | MR | 1 | SDWIS / TX1670013 / 2456 |
| 2006 | Coliform (TCR) | MCL | 4 | SDWIS / TX1670013 / 3100 |
How MULLIN INDEPENDENT SCHOOL DISTRICT Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | MULLIN INDEPENDENT SCHOOL DISTRICT | Texas avg | Federal benchmark |
|---|---|---|---|
| Total violations | 421 | 101.5 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 204 | 22.2 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 93.1% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 130 | 4,524 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.
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
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Related Data for Texas
Read our methodology — how this data is sourced, computed, and verified.