Water Quality Report · Updated October 07, 2026
CITY OF ROWLETT
CITY OF ROWLETT delivers tap water graded C (65/100) by TapWaterSafety.org. The utility serves approximately 66,212 residents in ROWLETT, Texas using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Bromochloroacetic acid significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 972-412-6109.
Is ROWLETT tap water safe to drink?
CITY OF ROWLETT delivers tap water that earns a grade of C (65/100) from TapWaterSafety.org — an average rating, with several contaminants above health guidelines but generally compliant with US legal limits.
The utility serves 66,212 residents in ROWLETT, drawing from surface water (purchased). 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 19 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Bromochloroacetic acid, Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Dibromoacetic acid, Dibromochloromethane, Dichloroacetic acid, Chloroform, Trichloroacetic acid, Radium, combined (-226 and -228)*, Chromium (hexavalent), Bromoform, Nitrate, Chlorate, Bromochloromethane, Atrazine*, Chlorite*, Bromate*. 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 ROWLETT (system ID TX0570056) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Lead and Copper Rule | Missed testing or reporting | 12/30/2025 | Resolved |
| Lead and Copper Rule Revisions | Missed reporting | 07/02/2025 | 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 ROWLETT 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 ROWLETT.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 44.1 ppb, 735x above the EWG health guideline of 0.06 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 6.93 ppb, 346x above the EWG health guideline of 0.02 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 32.4 ppb, 216x above the EWG health guideline of 0.15 ppb.
Contact CITY OF ROWLETT
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 ROWLETT
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.
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 65/100 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 |
44.1 ppb | 0.06 | — | — | — | — | — | 735× over |
| Bromochloroacetic acid Disinfection byproduct |
6.93 ppb | 0.02 | — | — | — | — | — | 346× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
32.4 ppb | 0.15 | 80.0 | 100 | — | — | — | 216× over |
| Bromodichloromethane Disinfection byproduct |
11.4 ppb | 0.06 | — | — | — | — | — | 190× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
19.0 ppb | 0.1 | 60.0 | 60 | — | — | — | 190× over |
| Dibromoacetic acid Disinfection byproduct |
3.67 ppb | 0.03 | — | — | — | — | — | 122× over |
| Dibromochloromethane Disinfection byproduct |
8.16 ppb | 0.1 | — | — | — | — | — | 82× over |
| Dichloroacetic acid Disinfection byproduct |
10.3 ppb | 0.2 | — | — | — | — | — | 51× over |
| Chloroform Disinfection byproduct |
11.1 ppb | 0.4 | — | — | — | — | — | 28× over |
| Trichloroacetic acid Disinfection byproduct |
2.81 ppb | 0.1 | — | — | — | — | — | 28× over |
| Radium, combined (-226 and -228)* Radiological |
0.5 pCi/L | 0.05 | 5.0 | — | — | — | — | 10× over |
| Chromium (hexavalent) Heavy metal |
0.114 ppb | 0.02 | — | — | — | — | — | 5.7× over |
| Bromoform Disinfection byproduct |
1.71 ppb | 0.5 | — | — | — | — | — | 3.4× over |
| Nitrate Inorganic |
0.354 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.5× over |
| Chlorate Disinfection byproduct |
417.4 ppb | 210.0 | — | — | — | — | — | 2.0× over |
| Bromochloromethane Other |
0.11 ppb | 0.06 | — | — | — | — | — | 1.8× over |
| Atrazine* Pesticide/Herbicide |
0.148 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Fails EU |
| Chlorite* Disinfection byproduct |
61.2 ppb | 50.0 | 1000.0 | — | — | — | — | 1.2× over |
| Bromate* Disinfection byproduct |
0.108 ppb | 0.1 | 10.0 | 10 | 10 | 0.1 | — | 1.1× over |
| Simazine* Pesticide/Herbicide |
0.0644 ppb | 0.1 | 4.0 | — | — | — | — | Below guideline |
| Barium* Heavy metal |
46.1 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Manganese Heavy metal |
3.8 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
1.65 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.641 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.554 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Acetone* Other |
6.8 ppb | — | — | — | — | — | — | Below guideline |
| Cyanide* Inorganic |
47.8 ppb | — | 200.0 | 50 | 70 | 150 | — | Below guideline |
| Cyanogen chloride* Other |
0.7 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride* Inorganic |
0.541 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Hexadecanoic acid* Other |
7.2 ppb | — | — | — | — | — | — | Below guideline |
| Methyl isobutyl ketone* Other |
0.0733 ppb | — | — | — | — | — | — | Below guideline |
| Metolachlor* Pesticide/Herbicide |
0.0333 ppb | — | — | — | — | — | — | Below guideline |
| Octadecanoic acid* Other |
21.0 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 ROWLETT service area
This water system serves 1 community in Dallas County, Texas. Click any city for its dedicated tap water quality page.
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