Pittsburg, California

City of Pittsburg tables in the Contra Costa Water District 2024 Annual Water Quality Report. Hardness 156 mg/L (range 76–217). Chloramines 1.4 mg/L highest quarterly RAA. No Measure S-style residential softener ban turned up — check the sewer agency on the bill.

Cited chemistry for PittsburgA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Hardness156 mg/L (range 76–217)Chloramines as Cl21.4 mg/L (range 0.2–2.4)Nitrate as N1.2 mg/L (range ND–1.7)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. Hardness156 mg/L (range 76–217)
  2. Chloramines as Cl21.4 mg/L (range 0.2–2.4)
  3. Nitrate as N1.2 mg/L (range ND–1.7)

Best match for Pittsburg

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 catalytic carbon for chloramine

    Catalytic carbon with a chloramine claim (NSF/ANSI 42 for chloramine). Regular chlorine carbon is the wrong box.

    Shop catalytic carbon for chloramine

  • 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 Pittsburg
Hardness
CITY OF PITTSBURG 2024. Hardness 156 mg/L average (range 76–217). One city table, not blended with Antioch or CCWD plant columns. — Contra Costa Water District 2024 Annual Water Quality Report (City of Pittsburg tables)
Disinfectant
Chloramines as Cl2 1.4 mg/L highest quarterly RAA (range 0.2–2.4), MRDL 4.0. Printed as chloramines. — Contra Costa Water District 2024 Annual Water Quality Report (City of Pittsburg tables)
Brine / salt to the sewer
Check the sanitation district before installing. Opened Pittsburg ecode360 plumbing/backflow materials. No self-regenerating softener ban. Ask Public Works or 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.

Pittsburg drinking water tables sit in the 2024 Contra Costa Water District regional booklet. No Measure S-style residential self-regenerating install ban turned up. Ask Public Works or the agency on the sewer bill before you cut a brine drain. This is not a legal opinion.

The City of Pittsburg table prints hardness 156 mg/L (range 76–217). Chloramines 1.4 mg/L highest quarterly RAA (range 0.2–2.4). Those are the Pittsburg columns, not a blend with Antioch. Kitchen shopping stays the Cloud RO / Waterdrop path already used on other cities if a listing is why you are looking.

Sources

  1. 2024 Annual Water Quality Report (City of Pittsburg tables) — Contra Costa Water District / City of Pittsburg. Accessed 2026-09-09.

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