Water Quality Report · Updated October 07, 2026
CITY OF MISSION
CITY OF MISSION delivers tap water graded D (59/100) by TapWaterSafety.org. The utility serves approximately 77,058 residents in MISSION, Texas using surface water. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Bromochloroacetic acid significantly above health guideline; Dibromoacetic acid significantly above health guideline; Arsenic detected. For questions, the utility can be reached at 956-580-8662.
Is MISSION tap water safe to drink?
CITY OF MISSION delivers tap water that earns a grade of D (59/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including haloacetic acids (haa9) significantly above health guideline.
The utility serves 77,058 residents in MISSION, drawing from surface water. Despite being legal under US EPA standards, this water would fail the European Union's Drinking Water Directive, primarily due to haloacetic acids (haa9) significantly above health guideline.
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Bromochloroacetic acid, Dibromoacetic acid, Arsenic, Total trihalomethanes (TTHMs), Haloacetic acids (HAA5), Dibromochloromethane, Bromodichloromethane, Bromoform, Dichloroacetic acid, Trichloroacetic acid, Chlorite, Chromium (hexavalent), Chloroform, Nitrate. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for CITY OF MISSION (system ID TX1080008) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Synthetic Organic Chemicals | Missed testing or reporting | 07/01/2023 | Resolved |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for MISSION residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for CITY OF MISSION.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 32.0 ppb, 533x above the EWG health guideline of 0.06 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 7.57 ppb, 379x above the EWG health guideline of 0.02 ppb.
Dibromoacetic acid significantly above health guideline
Moderate concernDibromoacetic acid detected at 10.6 ppb, 352x above the EWG health guideline of 0.03 ppb.
Arsenic detected
Moderate concernArsenic detected at 1.38 ppb.
Contact CITY OF MISSION
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for MISSION
Filters matched to the specific contaminants in this water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 59/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
32.0 ppb | 0.06 | — | — | — | — | — | 533× over |
| Bromochloroacetic acid Disinfection byproduct |
7.57 ppb | 0.02 | — | — | — | — | — | 379× over |
| Dibromoacetic acid Disinfection byproduct |
10.6 ppb | 0.03 | — | — | — | — | — | 352× over |
| Arsenic Heavy metal |
1.38 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 346× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
42.4 ppb | 0.15 | 80.0 | 100 | — | — | — | 283× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
17.8 ppb | 0.1 | 60.0 | 60 | — | — | — | 178× over |
| Dibromochloromethane Disinfection byproduct |
13.4 ppb | 0.1 | — | — | — | — | — | 134× over |
| Bromodichloromethane Disinfection byproduct |
7.14 ppb | 0.06 | — | — | — | — | — | 119× over |
| Bromoform Disinfection byproduct |
18.0 ppb | 0.5 | — | — | — | — | — | 36× over |
| Dichloroacetic acid Disinfection byproduct |
5.1 ppb | 0.2 | — | — | — | — | — | 25× over |
| Trichloroacetic acid Disinfection byproduct |
0.902 ppb | 0.1 | — | — | — | — | — | 9.0× over |
| Chlorite Disinfection byproduct |
437.9 ppb | 50.0 | 1000.0 | — | — | — | — | 8.8× over |
| Chromium (hexavalent) Heavy metal |
0.133 ppb | 0.02 | — | — | — | — | — | 6.7× over |
| Chloroform Disinfection byproduct |
2.61 ppb | 0.4 | — | — | — | — | — | 6.5× over |
| Nitrate Inorganic |
0.342 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.4× over |
| Chlorate Disinfection byproduct |
177.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.107 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Molybdenum Other |
6.04 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
2.98 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Barium Heavy metal |
97.0 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Selenium Heavy metal |
3.72 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Aluminum Heavy metal |
67.5 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Bromochloromethane Other |
0.00374 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
1.25 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
4.8 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.1 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
1.54 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Cyanide Inorganic |
73.3 ppb | — | 200.0 | 50 | 70 | 150 | — | Fails EU |
| Erucylamide Other |
2.9 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.5 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.713 ppb | — | — | — | — | — | — | Below guideline |
| Hexadecanoic acid Other |
7.1 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
38.5 ppb | — | — | — | — | — | — | Below guideline |
| Octadecanoic acid Other |
11.3 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
CITY OF MISSION service area
This water system serves 1 community in Hidalgo County, Texas. Click any city for its dedicated tap water quality page.
Find the right filter for MISSION water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.