Plano, Texas

City of Plano 2024 Annual Drinking Water Quality Report (PWS TX0430007). Purchased NTMWD surface water. Hardness prints as two labeled plant columns — Wylie 202 ppm (105–202), Leonard 188 ppm (112–188). Chloramines 2.53 ppm (range 0.10–3.88). No Measure S-style residential softener ban turned up.

Cited chemistry for PlanoA chart of numbers printed on the utility report, each labeled with its unit. Missing numbers are left off.Hardness (Wylie)202 ppm (range 105–202)Hardness (Leonard)188 ppm (range 112–188)Chloramines2.53 ppm (range 0.10–3.88)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. Hardness (Wylie)202 ppm (range 105–202)
  2. Hardness (Leonard)188 ppm (range 112–188)
  3. Chloramines2.53 ppm (range 0.10–3.88)

Best match for Plano

Salt-based water softener

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.

A salt-based softener is the thing that actually removes hardness. Size it from your grains and how much water you use, not bathroom count. It needs a drain.

Shop salt-based softeners

Some links are affiliate links. If you buy through one, we may earn a commission. That does not change the match, and it is not a medical claim.

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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 Plano Public Works
Hardness
Total hardness as CaCO3 — Wylie Water Treatment Plant 202 ppm (range 105–202). Leonard Water Treatment Plant 188 ppm (range 112–188). Those are two labeled 2024 NTMWD plant columns in the Plano report, not a blended citywide number. — City of Plano 2024 Annual Drinking Water Quality Report
Disinfectant
Chlorine residual (chloramines) average level of quarterly data 2.53 ppm, lowest single sample 0.10, highest single sample 3.88. MRDL 4.00. Disinfectant used to control microbes. Narrative says NTMWD-treated water uses chloramines. 2024 report. — City of Plano 2024 Annual Drinking Water Quality Report
Brine / salt to the sewer
No district prohibition found in current research. Searched City of Plano water and sewer pages and codes for a residential self-regenerating softener or brine-drain ban like LACSD Measure S. None turned up. 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

Plano drinking water is purchased North Texas Municipal Water District surface water treated at the Wylie and Leonard plants. No City of Plano residential softener ban like LACSD Measure S turned up. Ask the sewer agency on the bill before you cut a brine drain. This is not a legal opinion.

The 2024 report prints total hardness as two labeled plant columns — Wylie 202 ppm (range 105–202) and Leonard 188 ppm (range 112–188). We do not invent a citywide blend.

Chloramines 2.53 ppm quarterly average (range 0.10–3.88). 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 Drinking Water Quality Report — City of Plano Public Works. Accessed 2026-09-09.

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