Norman Utilities Authority water quality
Norman, OK · serves 104,868 people (42,751 connections) · Surface water · Local government · EPA ID OK1020801
Data: U.S. EPA · How we read the data · How we check it
Buys water from Oklahoma City Utilities. Treated water bought from another system can carry that system's contaminants.
Summary
No federal limits exceeded in EPA data.
- PFAS
- Detected, below limit2 of 29 PFAS found at least once. All averages below the federal limits.
- Lithium
- Above screening levelHighest result 17.7 ppb. EPA uses 10 ppb to decide what to study further. It is not a health limit, and there is no federal limit for lithium. About 1 in 4 systems tested were above it.
- Lead
- Below action level0 ppb (parts per billion) at the 90th percentile: 9 in 10 homes sampled were at or below it. Action level 15 ppb, falling to 10 ppb in Nov 2027. Monitoring period Jan 2026 – now, still in progress (results reported so far). Your home's pipes can make yours higher.
- Violations
- Resolved1 health-based violation since 2016, most recently Oct 2024.
- Built before 1986, or not sure what your service line is made of? Check your service line and test your tap. Utility data can't show your pipes.
- Tested your own tap? Compare your result with these numbers. Moving? Compare this system with another.
- Read Norman Utilities Authority's annual water quality report (Consumer Confidence Report). It lists every regulated contaminant tested and is usually on the utility's website or mailed with your bill, and you can also request it at (405) 321-2182. EPA: how to find it.
PFAS (“forever chemicals”)
EPA UCMR 5: 14 entry points tested Oct 2023 to Mar 2025. "Average" is the highest entry-point average (non-detects counted as zero), the way EPA compares UCMR 5 results to the limits. ppt = parts per trillion. These results do not determine compliance.
| Contaminant | Highest average |
|---|---|
| PFOA Not detected Limit 4 ppt | – |
| PFOS Not detected Limit 4 ppt | – |
| PFHxS Not detected Limit 10 ppt | – |
| PFNA Not detected Limit 10 ppt | – |
| HFPO-DA (GenX) Not detected Limit 10 ppt | – |
| Hazard Index (a combined score for PFHxS, PFNA, GenX and PFBS, where above 1 is over the limit) Detected, below limit Limit 1 | 0.00075 |
| PFBS Detected, below limit Guideline 2,000 ppt | 1.5 ppt |
| PFBA Detected, below limit Guideline 6,000 ppt | 6.63 ppt |
| PFHxA Not detected Guideline 3,000 ppt | – |
29 PFAS tested, 2 detected at least once. "Not detected" means below EPA's reporting limit (about 2 to 20 ppt depending on the chemical), not proven zero. PFAS not listed were not detected. The limits for PFHxS, PFNA, GenX and the Hazard Index were proposed for rescission in May 2026. That proposal is not final. Systems have until 2029 to meet the limits.
Lithium
Detected in 19 of 34 samples. Highest result 17.7 ppb. EPA's non-enforceable screening level is 10 ppb. Above screening level The screening level is how EPA decides what to study further, not a health limit. There is no federal limit for lithium and no filter is certified to remove it. About lithium.
Lead and copper
Latest 90th percentile: 0 ppb lead (Jan 2026 – now (in progress)). Below action level
Highest since 2016: 0.72 ppb (Dec 2023).
| Monitoring period | Lead (90th pct.) |
|---|---|
| Jan 2026 – now (in progress) | 0 ppb |
| Jan 2025 – Dec 2025 | 0.55 ppb |
| Jan 2024 – Dec 2024 | 0.57 ppb |
Earlier results (9)
| Jan 2023 – Dec 2023 | 0.72 ppb |
| Jan 2022 – Dec 2022 | 0.36 ppb |
| Jan 2021 – Dec 2021 | 0 ppb |
| Jul 2020 – Dec 2020 | 0 ppb |
| Jan 2020 – Jun 2020 | 0 ppb |
| Jan 2019 – Dec 2019 | 0 ppb |
| Jan 2018 – Dec 2018 | 0 ppb |
| Jan 2013 – Dec 2015 | 0.63 ppb |
| Jul 2012 – Dec 2012 | 0 ppb |
Lead comes from pipes and fixtures, not the source water, so it varies home to home. The 90th percentile means 9 in 10 sampled homes were at or below it. More on lead.
Violations
| When | What happened |
|---|---|
| Oct 2024 | The system did not publish the required inventory of lead service lines (due October 2024). It says nothing about lead levels in the water. EPA record: Lead and copper rule revisions · LSL Inventory Resolved |
Health-based violations mean a contaminant exceeded a limit or a required treatment step was missed. Monitoring and reporting violations mean required tests or reports were late or missing, so the water's quality during that time is unknown. The total includes every violation in EPA's records, most of them paperwork.
Earlier EPA testing (2013–2020)
| Contaminant | Highest | Guideline |
|---|---|---|
| Manganese | 8.49 ppb | 300 ppb |
| Molybdenum | 2.59 ppb | 40 ppb |
| Vanadium | 138 ppb | 21 ppb |
| Chromium-6 | 97.4 ppb | – |
| Chlorate | 969 ppb | 210 ppb |
| Strontium | 0.82 ppm | 1.5 ppm |
Where it serves
ZIP codes the system reported serving: 73019, 73026, 73069, 73070, 73071, 73072
Nearby utilities
- Moore Public Works Authority Moore · 10 mi
- Midwest City Water System Midwest City · 15 mi
- Oklahoma City Utilities Oklahoma City · 18 mi
- Tri-County Rural Water District #2 Shawnee · 26 mi · PFAS above limit
- Edmond Public Works Authority Edmond · 30 mi
- Stillwater Utilities Authority Stillwater · 63 mi · PFAS above limit
Questions
Is Norman Utilities Authority water safe to drink?
Norman Utilities Authority had 1 health-based violation since 2016, all since resolved. EPA testing found no PFAS above the federal limits. Federal data can't tell you about your own pipes: lead comes from service lines and plumbing, so test your tap if your home was built before 1986. For the official word, read the utility's annual Consumer Confidence Report.
Does Norman Utilities Authority water have PFAS?
Yes. EPA's 2023–2025 testing of Norman Utilities Authority found 2 PFAS at least once. None of the averages were above the federal limits.
What is the lead level in Norman Utilities Authority water?
The most recent 90th-percentile lead result for Norman Utilities Authority is 0 ppb, for the monitoring period that began Jan 2026 (still in progress). The federal action level is 15 ppb, falling to 10 ppb in November 2027. The 90th percentile means 9 in 10 homes sampled were at or below this number. Individual homes can be higher.
Check these numbers yourself
Every figure on this page comes from public EPA records. You don't have to take our word for it:
- EPA's own report for OK1020801: violations, enforcement and inspections, straight from EPA.
- EPA UCMR 5 data: the PFAS and lithium results (search the file for PWSID OK1020801).
- EPA SDWIS download: the lead results, population and violation records we use.
- The utility's annual water quality report (Consumer Confidence Report): ask Norman Utilities Authority at (405) 321-2182, or see EPA's guide to finding it.
Found something that doesn't match? Tell us and we'll check it against EPA's records. How we check our data.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.