Lodi, California

City of Lodi Annual Water Quality Report for 2025 (published May 2026). Total hardness 133 ppm / 7.8 gpg (range 14–340). Chlorine 0.74 ppm. City materials discourage self-regenerating units for WPCF salinity — that is not a Measure S-style ban. Check the sewer agency on the bill.

Cited chemistry for LodiA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Total hardness133 ppm / 7.8 gpg (range 14–340)Chlorine0.74 ppm (range 0.4–1.2)Arsenic3.8 ppb (range ND–8.1)Nitrate as N3.7 ppm (range ND–9.2)WQR
Cited numbers from the utility report. Length follows the printed value against a labeled scale — not a health ranking. If the report has no number, it is not on the chart.
  1. Total hardness133 ppm / 7.8 gpg (range 14–340)
  2. Chlorine0.74 ppm (range 0.4–1.2)
  3. Arsenic3.8 ppb (range ND–8.1)
  4. Nitrate as N3.7 ppm (range ND–9.2)

Best match for Lodi

Salt-based water softener — confirm the district first

Two tall mineral tanks and a black brine tank of a salt-based water softener, plumbed with copper pipe in a garage.
Salt-based softener: two mineral tanks and a brine tank.

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.

Shop salt-based softeners

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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.

    Shop salt-free conditioners

  • 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.

    Shop whole-house carbon

  • 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.

    Shop water test kits

On the report

Water utility
City of Lodi Water Utility
Hardness
Other non-regulated constituents, 2023–2025 data, one hardness pair. Total Hardness 133 ppm as CaCO3 (range 14–340). Total Hardness 7.8 grains/gal (range 0.8–19.9). Not two source columns. — City of Lodi Annual Water Quality Report for 2025
Disinfectant
Chlorine 0.74 ppm average (range 0.4–1.2), MCL/MRDL 4, 2025. Printed as chlorine. Narrative calls it low level chlorination. — City of Lodi Annual Water Quality Report for 2025
Sanitation district
City of Lodi (WPCF / sewer)
Brine / salt to the sewer
Check the sanitation district before installing. Opened Lodi Municode Title 13 water service. No residential self-regenerating install prohibition. City salinity materials discourage self-regenerating units because brine raises WPCF salinity — that is not a Measure S-style ban. Ask Public Works before 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.

Lodi drinking water is delivered by the City of Lodi Water Utility. Opened Title 13 water-service rules do not print a Measure S-style residential self-regenerating install ban. City salinity materials discourage those units because brine loads the WPCF. Ask Public Works before you cut a brine drain. This is not a legal opinion.

The 2025 report prints total hardness 133 ppm / 7.8 gpg (range 14–340 ppm). Chlorine 0.74 ppm (range 0.4–1.2). Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.

Sources

  1. Annual Water Quality Report for 2025 — City of Lodi Water Utility. Accessed 2026-09-09.
  2. Municipal Code Chapter 13.08 Water Service — City of Lodi (Municode). Accessed 2026-09-09.

Updated September 9, 2026. A city file is chemistry we can cite plus the sewer rule. No invented detections.