2025 data; lead and copper2024
Results for City of Denton customers. Confirm the retail utility and system on your bill.
See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.
Not quantifiedmg/L as CaCO₃
No hardness measurement provided in the reviewed municipal CCR
The report does not establish whether your incoming water is hard; obtain a hardness test before setting a softener.
3.21 averageppm
Reported average; single samples0.08–4.50 ppm
Chloramine is used for disinfection; the annual measure and individual sample maximum are different.
13ppb
Maximum locational running annual average
Below the report’s stated benchmark; this does not mean absent or describe an individual tap.
11ppb
Maximum locational running annual average; report prints HAAS
Below the report’s stated benchmark; this does not mean absent or describe an individual tap.
0.51 averageppm
Reported average; maximum 0.723 ppm
Below the report’s stated benchmark; this does not mean absent or describe an individual tap.
1.5ppb
90th-percentile tap sampling result; zero sites above the action level
This system-level sampling statistic is not a result for your home; plumbing can affect lead at an individual tap.
Not verified
No compound-specific result assessed in this summary
This does not establish whether PFAS are present or absent. Check compound-specific testing before choosing treatment.
0.339 averageppm
Reported average; maximum 0.364 ppm
Below the report’s stated benchmark; this does not mean absent or describe an individual tap.
Continue with your home details for general filtration guidance. We will not use another utility’s numbers as your result.
Find My Water System →A city report cannot establish a well’s water quality. Well-water treatment depends on your test results and site conditions.
Explore well-water systems →Selected useful results—not a replacement for the utility’s complete report. Older measurements retain their original year.
Open the complete utility report ↗
| What was measured | Reported amount | Sample year / source date | How to read it |
|---|---|---|---|
| Water hardness | Not quantified mg/L as CaCO₃No hardness measurement provided in the reviewed municipal CCR | 2025 report reviewedView source ↗ | Unknown—not zeroThe report does not establish whether your incoming water is hard; obtain a hardness test before setting a softener. |
| Chloramine | 3.21 average ppmReported average; single samples0.08–4.50 ppm | 2025View source ↗ | Below 4 ppm annual MRDL comparisonChloramine is used for disinfection; the annual measure and individual sample maximum are different. |
| Total trihalomethanes (TTHM) | 13 ppbMaximum locational running annual average | 2025View source ↗ | Below 80 ppb comparisonBelow the report’s stated benchmark; this does not mean absent or describe an individual tap. |
| Haloacetic acids (HAA5) | 11 ppbMaximum locational running annual average; report prints HAAS | 2025View source ↗ | Below 60 ppb comparisonBelow the report’s stated benchmark; this does not mean absent or describe an individual tap. |
| Fluoride | 0.51 average ppmReported average; maximum 0.723 ppm | January 15, 2025View source ↗ | Below 4 ppm comparisonBelow the report’s stated benchmark; this does not mean absent or describe an individual tap. |
| Nitrate | 0.339 average ppmReported average; maximum 0.364 ppm | January 15, 2025View source ↗ | Below 10 ppm comparisonBelow the report’s stated benchmark; this does not mean absent or describe an individual tap. |
| Lead | 1.5 ppb90th-percentile tap sampling result; zero sites above the action level | 2024View source ↗ | Below 15 ppb action levelThis system-level sampling statistic is not a result for your home; plumbing can affect lead at an individual tap. |
| Copper | 0.6335 ppm90th-percentile tap sampling result; zero sites above the action level | 2024View source ↗ | Below 1.3 ppm action levelBelow the action level used in this report; this is not a measurement at every customer’s tap. |
| PFAS | Not verified No compound-specific result assessed in this summary | 2025 report reviewView source ↗ | Cannot assess high or lowThis does not establish whether PFAS are present or absent. Check compound-specific testing before choosing treatment. |
ppm ≈ mg/L; ppb ≈ µg/L; ppt ≈ ng/L in drinking water. Hardness in gpg = mg/L as CaCO₃ ÷ 17.1. ND means not detected at the method’s reporting limit—not zero.
MCL is a maximum contaminant level. MRDL is a disinfectant limit. Lead/copper action levels use system sampling percentiles and are not a safe-tap threshold. TTHM/HAA5 compliance uses locational annual averages.
PFOA/PFOS comparisons use EPA’s 4 ppt values. Historical detections are not a present compliance finding; EPA assesses compliance using running annual averages. Rule implementation is being reviewed. EPA PFAS benchmarks and implementation ↗
Choose the system size, keep useful existing equipment, and review your filtration goals.
Source water. Denton treats surface water from Lake Lewisville and Lake Ray Roberts. These are its own utility sources; NTMWD hardness should not be substituted for Denton municipal water.
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More about your local water
Verified city results. No borrowed hardness estimate.
City of Denton treats water from Lake Lewisville and Lake Ray Roberts. NTMWD plant hardness from Frisco or Plano is not a substitute for Denton municipal data. A missing hardness value is not a zero or a soft-water result.
A useful local question
Yes. Filtration for the identified treatment and taste goals can be considered while hardness is measured separately. A softener treats hardness minerals; it is not a substitute for choosing the correct filter.
We keep each utility’s results separate, show the reported sample year, and distinguish averages, maxima and tap-sampling percentiles. Hardness classifications use USGS ranges. Missing data stays unknown.
Sources checked October 23, 2026
Your water → your home → your system
Choose the system size, keep useful existing equipment, and review your filtration goals.