Folsom, California
City of Folsom 2023 Consumer Confidence Report (Water Boards Year=2024 file). Folsom Lake surface water. Hardness prints as two labeled columns — Ashland 28 ppm and Folsom 23.8 ppm. Chlorine residual 1.1 ppm on the Folsom column. No Measure S-style residential softener ban turned up — check the sewer agency on the bill.
- Hardness (Folsom)23.8 ppm (18–28)
- Hardness (Ashland)28 ppm (22–33)
- Chlorine (Folsom)1.1 ppm (1.0–1.1)
Best match for Folsom
Whole-house carbon for chlorine
Check the sanitation district before installing a salt system.
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.
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Other options that still fit
Do not buy a softener on this supply
This supply is soft on the published numbers. A salt tank is usually the wrong box unless you are on a well or a different utility. Test the tap before you buy hardness equipment.
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
On the report
- Water utility
- City of Folsom Environmental & Water Resources
- Hardness
- Two labeled columns on the 2023 CCR. Ashland (San Juan Water District purchase) hardness 28 ppm as CaCO3 (range 22–33). Folsom column 23.8 ppm (range 18.0–28.0). Those are labeled columns, not a blend. Narrative says “Considered medium on hard water scale.” Calcium is printed separately (Folsom average 6.8 ppm) and is not used as hardness. — City of Folsom 2023 Consumer Confidence Report (Water Boards Year=2024 filing)
- Disinfectant
- Chlorine 1.1 ppm (range 1.0–1.1) on the Folsom column. Ashland column 0.7 ppm. Water disinfectant added for treatment. Not chloramine on that table. — City of Folsom 2023 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
Folsom drinking water on this file is City of Folsom Main, PWS CA3410014, drawn from Folsom Lake. 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 Water Boards Year=2024 file is titled 2023 Consumer Confidence Report. Hardness prints as two labeled columns — Folsom 23.8 ppm (18.0–28.0) and Ashland 28 ppm (22–33). We do not invent a blend. Folsom column chlorine 1.1 ppm (1.0–1.1). Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.
Sources
- 2023 Consumer Confidence Report (PWS CA3410014) — City of Folsom / 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.