Pflugerville, TX water hardness
City of Pflugerville publishes a hardness range of 201 to 333 mg/L for its system, in its City of Pflugerville 2025 Drinking Water Quality Report (combined Consumer Confidence Report). On the USGS scale that is very hard water.
The published figure, exactly as it appears
This is the hardness line transcribed from the source, with nothing added:
Contaminant Units Low High SMCL Effects Met Standard […] Hardness (CACO3) Mg/L 201 333 N/A Hardness; deposits
City of Pflugerville, City of Pflugerville 2025 Drinking Water Quality Report (combined Consumer Confidence Report)
Units as published: Mg/L. What kind of figure it is: a range with no average. Retrieved 2026-10-26.
Pflugerville hardness in mg/L and grains per gallon
Water-quality reports use mg/L (identical to ppm). Softener instructions and plumbing specifications use grains per gallon. Both are below. Where a figure is our arithmetic rather than the utility's own number, it says so.
| Figure | mg/L (ppm) | Grains per gallon | Whose number |
|---|---|---|---|
| Low end of published range | 201 | 11.8 | mg/L published, gpg is our conversion |
| High end of published range | 333 | 19.5 | mg/L published, gpg is our conversion |
| Plotted on the scale above | 267 | 15.6 | midpoint of the published range (no average is published); the gpg here is our conversion at 17.1, so it can differ slightly from a utility’s own rounded gpg figure |
The conversion, both ways: gpg = mg/L ÷ 17.1 and mg/L = gpg × 17.1. Worked for this system: 267 ÷ 17.1 = 15.6 gpg. The converter does °dH and °f as well, and why the factor is 17.1 explains where the number comes from.
What this figure does not tell you
Service area and source water
| Utility | City of Pflugerville |
|---|---|
| Public water system ID | TX2270014 |
| Service area as published | The City of Pflugerville public water system (TX2270014). Pflugerville is a separate utility from Austin Water; this page does not describe Austin Water customers, and Austin Water's page does not describe Pflugerville. |
| Source water | Lake Pflugerville (filled from the Colorado River via LCRA), two groundwater wells, and treated water delivered through an interconnect from Manville Water Supply Corporation, per the report. |
Provenance of every number on this page
| Source document | City of Pflugerville 2025 Drinking Water Quality Report (combined Consumer Confidence Report) |
|---|---|
| Source URL | https://content.civicplus.com/api/assets/tx-pflugerville/04741aff-bfa7-4872-85f1-df4c3e699c34?cache=1800 |
| Published by | City of Pflugerville |
| Report year | 2025 |
| Year note | The report states that its information was collected between January 1, 2025 and December 31, 2025 unless otherwise indicated; it is dated July 1, 2026. |
| Retrieved | 2026-10-26 |
| Classification bands | USGS Water Science School, retrieved 2026-10-16 |
Notes the report forces on this page
- The report gives a low and a high for its own system and no average, so the plotted point is the midpoint of that range and is not a figure the city published.
- The same combined report reprints the annual report of Manville Water Supply Corporation (TX2270033), a wholesale supplier to Pflugerville. Manville's own table gives “Total Hardness as CaCO3” with a highest level of 346 ppm and a range of 39.7 - 346 ppm for 2025. That is Manville's figure for Manville's system, not Pflugerville's, and it is not used in the range on this page.
If you are sizing a softener for Pflugerville water
At 15.6 gpg, the sizing arithmetic starts from your household's water use, not from the hardness alone. The calculator below is pre-filled with this system's figure and every other input is an editable assumption.
Whether a softener is worth installing at this hardness is a judgement, not arithmetic, and it is not one this site makes for you. Nothing here has been tested by the author.
Where Pflugerville sits against other verified systems
- Portland, OR 9 mg/L 0.5 gpg Soft
- Boston, MA 16 mg/L 1 gpg Soft
- Manchester, NH 17.9 mg/L 1 gpg Soft
- Seattle, WA 19.1 mg/L 1.1 gpg Soft
- Raleigh, NC 25 mg/L 1.47 gpg Soft
- New York, NY 32 mg/L 2 gpg Soft
- Charlotte, NC 32 mg/L 1.9 gpg Soft
- Memphis, TN 46 mg/L 2.7 gpg Soft
- Norfolk, VA 48 mg/L 2.8 gpg Soft
- Anchorage, AK 56 mg/L 3.3 gpg Soft
- Virginia Beach, VA 56 mg/L 3.3 gpg Soft
- Oakland, CA 68.4 mg/L 4 gpg Moderately hard
- Nashville, TN 77.3 mg/L 4.5 gpg Moderately hard
- Sacramento, CA 83 mg/L 4.9 gpg Moderately hard
- Fresno, CA 89.3 mg/L 5.2 gpg Moderately hard
- Saint Paul, MN 90 mg/L 5 gpg Moderately hard
- Austin, TX 93 mg/L 5.4 gpg Moderately hard
- Minneapolis, MN 94 mg/L 5.5 gpg Moderately hard
- Washington, DC 95 mg/L 5.6 gpg Moderately hard
- Baltimore, MD 97.5 mg/L 5.7 gpg Moderately hard
- Birmingham, AL 98 mg/L 5.7 gpg Moderately hard
- Kansas City, MO 100 mg/L 5.8 gpg Moderately hard
- Denver, CO 105 mg/L 6.1 gpg Moderately hard
- Detroit, MI 107 mg/L 6.3 gpg Moderately hard
- Aurora, CO 113 mg/L 6.6 gpg Moderately hard
- Tulsa, OK 114.5 mg/L 6.7 gpg Moderately hard
- Louisville, KY 115 mg/L 6.7 gpg Moderately hard
- Columbus, OH 120 mg/L 7 gpg Moderately hard
- Cleveland, OH 120 mg/L 7 gpg Moderately hard
- Philadelphia, PA 125 mg/L 7.3 gpg Hard
- Ann Arbor, MI 126 mg/L 7.4 gpg Hard
- Cincinnati, OH 133 mg/L 7.8 gpg Hard
- Chicago, IL 134.5 mg/L 7.9 gpg Hard
- Houston, TX 135.5 mg/L 7.9 gpg Hard
- Milwaukee, WI 137 mg/L 8.01 gpg Hard
- St. Louis, MO 138 mg/L 8.1 gpg Hard
- Grand Rapids, MI 142 mg/L 8.3 gpg Hard
- Fort Worth, TX 145 mg/L 8.5 gpg Hard
- Spokane, WA 159 mg/L 9.3 gpg Hard
- Honolulu, HI 162.5 mg/L 9.5 gpg Hard
- Wichita, KS 170 mg/L 9.9 gpg Hard
- Omaha, NE 170 mg/L 10 gpg Hard
- Los Angeles, CA 192 mg/L 11.2 gpg Very hard
- Lincoln, NE 192 mg/L 11.2 gpg Very hard
- Riverside, CA 197 mg/L 12 gpg Very hard
- Tampa, FL 220 mg/L 12.9 gpg Very hard
- Phoenix, AZ 237 mg/L 13.9 gpg Very hard
- Mesa, AZ 239.4 mg/L 14 gpg Very hard
- Round Rock, TX 258 mg/L 15.1 gpg Very hard
- Pflugerville, TX 267 mg/L 15.6 gpg Very hard
- San Diego, CA 276 mg/L 16 gpg Very hard
- Las Vegas, NV 280 mg/L 16 gpg Very hard
- Chandler, AZ 282.2 mg/L 16.5 gpg Very hard
- San Antonio, TX 299.3 mg/L 17.5 gpg Very hard
- Anaheim, CA 300 mg/L 18 gpg Very hard
- Henderson, NV 304 mg/L 18 gpg Very hard
- Indianapolis, IN 317 mg/L 19 gpg Very hard
- Madison, WI 324.9 mg/L 19 gpg Very hard
- Scottsdale, AZ 352.5 mg/L 20.6 gpg Very hard
- Salt Lake City, UT 353.5 mg/L 20.7 gpg Very hard
mg/L as calcium carbonate. Each classification band is drawn the same width, so the axis is not linear in mg/L.
Systems with similar published hardness
- San Diego, CA City of San Diego Public Utilities Department, 276 mg/L (16.1 gpg)
- Round Rock, TX City of Round Rock, 258 mg/L (15.1 gpg)
- Las Vegas, NV Las Vegas Valley Water District, 280 mg/L (16.4 gpg)
- Chandler, AZ City of Chandler, 282.2 mg/L (16.5 gpg)
All 60 verified systems How to find hardness in your own utility's report If you are on a well instead