Vacaville, California
City of Vacaville 2024 Water Quality Report to Consumers. Hardness prints as three labeled columns — groundwater 177 ppm, NBR 176 ppm, VWTP 163 ppm. Chlorine 1.11 ppm. No Measure S-style residential softener ban turned up — check the sewer agency on the bill.
- Hardness (groundwater)177 ppm (range 76–300)
- Hardness (NBR)176 ppm (range 140–194)
- Hardness (VWTP)163 ppm
- Chlorine1.11 ppm (min <0.1, max 2.0)
- Chromium-6 (groundwater)14 ppb (range 1.8–30)
Best match for Vacaville
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
- City of Vacaville Utilities
- Hardness
- Table 3, three labeled columns. Groundwater (2023) 177 ppm average (range 76–300). Treated surface from NBR (2024) 176 ppm (range 140–194). VWTP (2024) 163 ppm average. Do not blend. — City of Vacaville 2024 Water Quality Report to Consumers
- Disinfectant
- Chlorine 1.11 ppm average (minimum <0.1, maximum 2.0), MRDL 4.0, Table 7 distribution. Printed as chlorine. — City of Vacaville 2024 Water Quality Report to Consumers
- Brine / salt to the sewer
- Check the sanitation district before installing. No Measure S-style residential self-regenerating install ban like LACSD Measure S turned up. That is not a statewide ban finding. 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
- Chromium-6The 2024 report prints hexavalent chromium on the groundwater column 14 ppb (range 1.8–30). The report says a Cr6 exceedance with a compliance date of October 1, 2026. That is the labeled column, not a citywide blend we invented.Groundwater 14 ppb (range 1.8–30); VWTP 2.0; NBR na.2024 Water Quality Report to Consumers — City of Vacaville Utilities
- 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
Vacaville drinking water is groundwater, NBR treated surface water, and VWTP water. No Measure S-style residential self-regenerating install ban turned up. Ask Utilities or the agency on the sewer bill before you cut a brine drain. This is not a legal opinion.
The 2024 report prints hardness as three labeled columns — groundwater 177 ppm, NBR 176 ppm, VWTP 163 ppm. We do not invent a blend. Chlorine 1.11 ppm. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.
Sources
- 2024 Water Quality Report to Consumers — City of Vacaville Utilities. Accessed 2026-09-09.
Updated September 9, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.