Fair Oaks, California
Same 2025 San Juan Water District joint CCR as the Citrus Heights file. Hardness prints as three labeled columns — San Juan surface 17 ppm, Citrus Heights groundwater 134.5 ppm, Fair Oaks groundwater 84.5 ppm. Fair Oaks groundwater chlorine residual 0.49 ppm (0.2–0.85). No Measure S-style residential softener ban turned up — check the sewer agency on the bill.
- Hardness (Fair Oaks GW)84.5 ppm (48–120)
- Hardness (San Juan surface)17 ppm
- Chlorine (Fair Oaks)0.49 ppm (0.2–0.85)
Best match for Fair Oaks
Salt-based water softener — confirm the district first
Check the sanitation district before installing a salt system.
Ask the agency on the sewer side of the bill before you cut a brine drain. California lets districts restrict self-regenerating units. A “banned in California” blog is not your district.
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Other options that still fit
Salt-free conditioner
A salt-free conditioner changes how scale sticks. It does not soften. Soap and spots stay closer to untreated. No brine line.
Whole-house carbon for chlorine
That is chlorine. A whole-house carbon filter with an NSF/ANSI 42 chlorine claim is the usual match. A softener will not take chlorine out.
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
- Fair Oaks Water District
- Hardness
- Three labeled columns on the 2025 San Juan joint booklet. San Juan surface 17 ppm (2022). Citrus Heights groundwater 134.5 ppm (98–160, 2022). Fair Oaks groundwater 84.5 ppm (48–120, 2024). Those are labeled columns, not a blend. — San Juan Water District 2025 Consumer Confidence Report (joint with Fair Oaks WD)
- Disinfectant
- Chlorine residual – distribution system, Fair Oaks groundwater column 0.49 ppm (range 0.2–0.85), 2024. MRDL 4. Not chloramine on that table. — San Juan Water District 2025 Consumer Confidence Report
- Brine / salt to the sewer
- Check the sanitation district before installing. No city or sanitation-district residential self-regenerating softener ban like LACSD Measure S or IEUA Ordinance § 2.6 turned up on the pages we opened. That is not a statewide ban finding. Ask the agency on the sewer 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
- PFASEPA’s Fifth Unregulated Contaminant Monitoring Rule required community systems this size to test 29 PFAS and lithium in 2023–2025. Open the UCMR 5 Data Finder for this PWS. This file does not invent a detection.Fifth Unregulated Contaminant Monitoring Rule — U.S. Environmental Protection Agency
Fair Oaks drinking water on this file is Fair Oaks Water District on the San Juan Water District wholesale system. No city or sanitation-district residential self-regenerating softener ban like LACSD Measure S or IEUA Ordinance § 2.6 turned up on the pages we opened. That is not a statewide ban finding. Ask the agency on the sewer bill before you cut a brine drain. This is not a legal opinion.
The 2025 joint report prints hardness as three labeled columns — Fair Oaks groundwater 84.5 ppm (48–120), San Juan surface 17 ppm, and Citrus Heights groundwater 134.5 ppm (98–160). We do not invent a blend. Fair Oaks column chlorine residual 0.49 ppm (0.2–0.85). Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.
Sources
- 2025 Consumer Confidence Report — Fair Oaks Water District / San Juan Water District. Accessed 2026-09-11.
- 2025 Consumer Confidence Report (PWS CA3410006 joint booklet) — State Water Resources Control Board. Accessed 2026-09-11.
Updated September 11, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.