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Public water system record

City of Midland Water Purification Plant

Serves Midland, Midland County, TX · 157,000 people served

Federal records show 4 health-based violations and 1 monitoring/reporting issue for City of Midland Water Purification Plant in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • TX1650001
  • MIDLAND
  • TX
  • 157,000 served

System profile

Source water Surface water
ZIP 79702
EPA system ID TX1650001

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
1

Key facts

  • City of Midland Water Purification Plant draws water from 98 wells and 4 surface water intakes.
  • Highest measured level in the last 10 years: Arsenic, 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit), 2017.
  • Most recent enforcement action: boil water order by Texas, January 2023.
  • Record on file since 1991, with 72 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 51,375 service lines.

Check whether City of Midland Water Purification Plant serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Nov 1, 2024 Resolved Yes
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
 330 Oct 1, 2023 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
 120 Jan 1, 2023 Resolved Yes
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
 330 Jan 1, 2017 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Public Notice
OTHER
 Jul 7, 2017 Resolved

Full record since 1991

EPA's records for City of Midland Water Purification Plant go back to 1991. Before October 20, 2016 they list 72 health-based violations (72 resolved) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 3
2000s 9 0
2010 to October 19, 2016 63 10
October 20, 2016 to 2019 1 1
2020s 3 0

Most recent health-based violation before October 20, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began July 2016, Resolved.

Show all 72 health-based violations before October 20, 2016
Contaminant Start date Status
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
 Jul 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.085 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.098 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Jan 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.108 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Oct 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.116 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 Jul 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.104 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.097 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.096 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.102 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Apr 1, 2014 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.4 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Jan 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Jan 1, 2014 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
 Jan 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Jan 1, 2014 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2014 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.4 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Oct 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.025 mg/L, federal limit 0.01 mg/L (2.5 times the limit)
 Oct 1, 2013 Resolved
Selenium
Contaminant limit exceeded
Measured 0.06 mg/L, federal limit 0.05 mg/L (1.2 times the limit)
 Oct 1, 2013 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 2013 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.3 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Jul 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.025 mg/L, federal limit 0.01 mg/L (2.5 times the limit)
 Jul 1, 2013 Resolved
Selenium
Contaminant limit exceeded
Measured 0.06 mg/L, federal limit 0.05 mg/L (1.2 times the limit)
 Jul 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.135 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Apr 1, 2013 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.3 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Apr 1, 2013 Resolved
Selenium
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.05 mg/L (1.4 times the limit)
 Apr 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.027 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
 Apr 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.133 mg/L, federal limit 0.08 mg/L (1.7 times the limit)
 Jan 1, 2013 Resolved
Selenium
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.05 mg/L (1.4 times the limit)
 Jan 1, 2013 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.3 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Jan 1, 2013 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.027 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
 Jan 1, 2013 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.121 mg/L, federal limit 0.08 mg/L (1.5 times the limit)
 Oct 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.031 mg/L, federal limit 0.01 mg/L (3.1 times the limit)
 Oct 1, 2012 Resolved
Selenium
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.05 mg/L (1.8 times the limit)
 Oct 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
 Oct 1, 2012 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.4 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Oct 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.109 mg/L, federal limit 0.08 mg/L (1.4 times the limit)
 Jul 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
 Jul 1, 2012 Resolved
Selenium
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.05 mg/L (2 times the limit)
 Jul 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.034 mg/L, federal limit 0.01 mg/L (3.4 times the limit)
 Jul 1, 2012 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.4 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Jul 1, 2012 Resolved
Selenium
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.05 mg/L (1.8 times the limit)
 Apr 1, 2012 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.5 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Apr 1, 2012 Resolved
Arsenic
Contaminant limit exceeded
Measured 0.041 mg/L, federal limit 0.01 mg/L (4.1 times the limit)
 Apr 1, 2012 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jan 1, 2012 Resolved
Selenium
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.05 mg/L (1.8 times the limit)
 Jan 1, 2012 Resolved

22 older violations are not listed here. EPA ECHO has the complete list.

Enforcement actions

Texas regulators and EPA took 4 formal enforcement actions against City of Midland Water Purification Plant and issued 1 boil water order between 2009 and 2023. The most recent was a boil water order in January 2023.

Date By Action Violations covered
Jan 5, 2023 Texas Boil water order 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Mar 15, 2015 Texas Compliance order with a penalty 16 violations (16 health-based): Total Trihalomethanes (TTHMs)
Apr 2, 2013 EPA Compliance order (no penalty) 9 violations (9 health-based): Selenium
Mar 29, 2013 EPA Compliance order (no penalty) 39 violations (39 health-based): Fluoride, Arsenic
Dec 18, 2009 Texas Signed compliance agreement 7 violations (7 health-based): Fluoride

What the violations mean

Interim Enhanced Surface Water Treatment Rule

2 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Arsenic

2 incidents

Arsenic exceeded the federal limit

Long-term arsenic exposure is linked to cancer and cardiovascular effects

Where the water comes from

City of Midland Water Purification Plant draws water from 98 wells and 4 surface water intakes. It also buys water from System TX1140038, Colorado River Municipal Water District and Midland County FWSD 1.

Buys water from

  • System TX1140038
  • Colorado River Municipal Water District Big Spring, TX
  • Midland County FWSD 1 Midland, TX

Annual water quality report

City of Midland Water Purification Plant must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Texas.

Certified drinking water labs by state EPA guidance for private wells