Drinking water quality · 2024
· Verified
What's in Ucmr5 — City of Richardson (2024), TX tap water
39 contaminants were measured in the Ucmr5 — City of Richardson (2024), TX water system's 2024 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2024
- Contaminants measured
- 39
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Nitrate Nitrite
- Service area
- TX
PFAS — EPA UCMR5 (2023–2025)
4 PFAS compounds detected in Ucmr5 — City of Richardson (2024), TX
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFHxA
● Detected (no federal limit)PFBA
● Detected (no federal limit)PFPeA
● Detected (no federal limit)PFBS
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Ucmr5 — City of Richardson (2024), TX buys its drinking water from NORTH TEXAS MWD WYLIE WTP, DALLAS WATER UTILITY.
Source
Treatment
Distribution
Also buys water from NORTH TEXAS MWD WYLIE WTP, DALLAS WATER UTILITY.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Nitrate Nitrite | 211 mg/LReported levelCount | None set | At or above the limit |
| Chromium | 0–0 ug/LRangeSystem-wide | None set | None detected |
| Dehp | 0–0 ug/LRangeSystem-wide | None set | None detected |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.9896 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.00335 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.048 mg/LMaximumSystem-wide | 2 mg/LMCL | Within the limit |
| Antimony | 0–0 ug/LRangeSystem-wide | None set | None detected |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0–0 ug/LRangeSystem-wide | None set | None detected |
| Beryllium | 0–0 ug/LRangeSystem-wide | None set | None detected |
| SeleniumA trace element from natural deposits and industrial discharge. | 0–0 ug/LRangeSystem-wide | None set | None detected |
| ZincA naturally occurring metal that can also enter water from corroding pipes. | 0–0 mg/LRangeSystem-wide | None set | None detected |
| CalciumA naturally occurring mineral that contributes to water hardness. | 26.5–69.8 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 4.9–9.77 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| ManganeseA naturally occurring metal from soil and rock. | 0.159 mg/LMaximumSystem-wide | None set | Detected — no federal limit |
| NickelA metal from natural deposits and industrial discharge. | 0.0047–0.0048 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 26.5–95.4 mg/LRangeSystem-wide | None set | Detected — no federal limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 2.63 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 34.71 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 20.35 ug/LAverageSystem-wide | None set | Within the limit |
| Chlorite | 0.16 mg/LAverageSystem-wide | 1 mg/LMCL | Within the limit |
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 0–0 ug/LRangeSystem-wide | None set | None detected |
| BromodichloromethaneA trihalomethane disinfection byproduct. | 12.91 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| BromoformA trihalomethane disinfection byproduct. | 2.42 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| ChloroformA trihalomethane formed when chlorine reacts with organic matter in water. | 9.31 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| DibromochloromethaneA trihalomethane disinfection byproduct. | 10.07 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.537–0.968 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.067–0.79 mg/LRangeSystem-wide | 10 mg/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 30–107 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 76.8–171 mg/LRangeSystem-wide | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| AtrazineA widely used agricultural herbicide that reaches water through runoff. | 0.1–0.2 ug/LRangeSystem-wide | None set | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cryptosporidium | 0–0RangeSystem-wide | None set | None detected |
| Giardia lamblia | 0.09–0.18RangeSystem-wide | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0–0 pCi/LRangeSystem-wide | 5 pCi/LMCL | None detected |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0–0 pCi/LRangeSystem-wide | 15 pCi/LMCL | None detected |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4.7–4.7 pCi/LRangeSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| AlkalinityA measure of the water's capacity to neutralize acids. | 51–139 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 82–312 mg/LRangeSystem-wide | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 6.39–9.17RangeSystem-wide | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 263–492 mg/LRangeSystem-wide | None set | Detected — no federal limit |
People also ask about Ucmr5 — City of Richardson (2024), TX's water
+Is Ucmr5 — City of Richardson (2024), TX tap water safe to drink in 2024?
The 2024 Consumer Confidence Report for the Ucmr5 — City of Richardson (2024), TX water utility lists 1 contaminant at or above the federal limit: Nitrate Nitrite. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in Ucmr5 — City of Richardson (2024), TX tap water?
39 contaminants were measured in Ucmr5 — City of Richardson (2024), TX's 2024 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 9 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Which contaminants exceed federal limits in Ucmr5 — City of Richardson (2024), TX tap water?
One contaminant in Ucmr5 — City of Richardson (2024), TX's 2024 report sits at or above the federal limit: Nitrate Nitrite (21.1× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in Ucmr5 — City of Richardson (2024), TX tap water?
The contaminant with the highest measured value relative to its federal limit in the 2024 report is Nitrate Nitrite, at 21.1× the federal threshold. It belongs to the other family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Ucmr5 — City of Richardson (2024), TX's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Ucmr5 — City of Richardson (2024), TX's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.