Oklahoma City, Oklahoma
Oklahoma City 2026 Consumer Confidence Report covering calendar year 2025 (PWS OK1020902). Lakes Hefner, Atoka, and Draper. Chlorine/chloramines residual RAA 3.0 mg/L. Hardness is not on the tables we opened. No Measure S-style residential softener ban turned up.
- Chlorine/chloramines3.0 mg/L RAA
- TTHMs64 ppb highest RAA (range 27.02–58.6)
- HAA532 ppb highest RAA (range 6.25–28.42)
Best match for Oklahoma City
Whole-house carbon — match chlorine vs chloramine
No district prohibition on a brine drain turned up in the current file.

Open the CCR for chlorine vs chloramine, then match that claim. A 42 chlorine listing is not chloramine.
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Other options that still fit
Confirm hardness on the current CCR before buying
Open the current CCR for grains. This file does not invent a number from a ranking site. A salt softener needs a drain if it is legal at the address.
Shop salt-based softenersShop salt-free conditionersShop water test kits
Under-sink reverse osmosis
The under-sink RO we actually run is Cloud RO — NSF/ANSI 58, kitchen tap, not a whole-house tank. Check the exact listing if PFAS is why you are shopping. Shop Amazon first for under-sink RO, or buy Cloud direct. Waterdrop is a tankless option if you want that path. A certifier-listed pitcher is the cheap first step. Nobody is paying for a medical claim.
Shop under-sink reverse osmosisBuy Cloud RO directShop Waterdrop reverse osmosisShop PFAS-listed pitchers
Test the tap first
A homeowner kit is a start. It is not a state-certified lab. Use a certified lab when the decision is expensive.
On the report
- Water utility
- Oklahoma City Utilities Department
- Hardness
- Not printed on the 2025 ODEQ tables we opened. This file does not invent a grains number from a ranking site. Open the current report or ask Utilities. — Oklahoma City 2026 Consumer Confidence Report (2025 data)
- Disinfectant
- Chlorine/chloramines maximum disinfection level — December 2025 MPA 3 mg/L, RAA 3.0 mg/L. June 2025 MPA 3 mg/L, RAA 3 mg/L. The table does not separate free chlorine from chloramine. Open the city booklet if you need the residual type. — Oklahoma City 2026 Consumer Confidence Report (2025 data)
- Brine / salt to the sewer
- No district prohibition found in current research. No Oklahoma City residential softener ban like LACSD Measure S turned up. Ask the sewer agency on the bill before you cut a brine drain.
Also around here
Extra context besides the utility report and the chart above — geology, an unregulated table, or a published study. Not a second set of printed tap numbers.
- MicroplasticsWHO’s 2019 review examined studies that found microplastic particles in treated tap and bottled water in many places. That is a published-occurrence finding, not a number from this city’s water-quality report, and we do not invent a particles-per-liter count for the tap.Microplastics in drinking-water — World Health Organization
- Other 2025 table numbersThe same ODEQ tables print these as detected results, not a three-lake blend we invented.Nitrate 0.682 ppm highest (range 0.089–0.682), MCL 10. Sodium 176 mg/L highest (range 69.8–176). Lead 90th percentile 0 ppb (0 sites over AL 15; range 0–4.41). Copper 90th 0.06018 ppm (0 sites over AL 1.3).Consumer Confidence Report – 2026 covering calendar year 2025 (PWS ID OK1020902) — Oklahoma Department of Environmental Quality / Oklahoma City
Oklahoma City drinking water comes from Lake Hefner, Lake Atoka, and Draper Lake (PWS OK1020902). No city residential softener ban like LACSD Measure S turned up. Ask the sewer agency on the bill before you cut a brine drain. This is not a legal opinion.
The 2026 ODEQ Consumer Confidence Report covering calendar year 2025 prints chlorine/chloramines residual as December MPA 3 mg/L, RAA 3.0 mg/L. The table does not separate free chlorine from chloramine. Hardness is not on the tables we opened. This file does not invent a grains number.
TTHMs highest RAA 64 ppb (range 27.02–58.6). HAA5 highest RAA 32 ppb (range 6.25–28.42). The city also posts a booklet at okc.gov/ccr. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.
Sources
- Consumer Confidence Report – 2026 covering calendar year 2025 (PWS ID OK1020902) — Oklahoma Department of Environmental Quality / Oklahoma City. Accessed 2026-09-09.
Updated September 9, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.