Hardness
Very Hard
192 PPM · 11.2 GPG
Local water dashboard
Official source aggregationWater quality in Iowa Colony, TX 77583
A source-transparent look at local hardness, associated public water systems, EPA compliance history, and the measurements that are—and are not—available for Brazoria County.
No active health-based violation reported
- Primary matched system
- City Of Iowa Colony
- Source water
- Groundwater
- County
- Brazoria County
- Profile updated
At a glance
What the current records say
EPA quarter 2026Q2
Compliance screen
No active flag
0 active health-based records
Lead 90th percentile
Not reported
Check the utility CCR or tap test
Utility match
1 system
Serves 9,978 people system-wide
Hardness meter
How hard is the water?
Estimated local hardness
USGS hardness classification scale
192 PPM
Soft
0–59Moderate
60–120Hard
121–180Very hard
181+
0–59Moderate
60–120Hard
121–180Very hard
181+
Parts per million
192
mg/L as CaCO₃ equivalent
Grains per gallon
11.2
1 GPG ≈ 17.1 PPM
What this means at home
At 192 PPM, mineral scale can build up on fixtures and heating elements, reduce soap lather, and leave visible spotting. Hardness is primarily an aesthetic and appliance concern—not itself a tap-water safety rating.
USGS sites used
45
Nearest site
4.1 mi
Observation range
Aug 9, 2016–Jun 12, 2025
Estimate confidence
Moderate
Median of the latest qualifying hardness observation at each nearby monitoring site. Nearest monitoring location: BH-65-45-5xx (TxWR 463356) (Well).USGS source documentation ↗
Regional context
Is 77583 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Iowa Colony median
192 PPM
About the same1 indexed ZIP readings · Range 192–192 PPM
Texas median
111 PPM
81 PPM higher1019 indexed ZIP readings · Range 5.4–500.5 PPM
EPA benchmark screen
Contaminant snapshot
Available numerical results from associated SDWIS community water systems, compared with the applicable action level or federal MCL. Federal measured-value coverage is incomplete.
Lead (PB90)
Not available
No numerical 90th-percentile result
Copper (CU90)
Not available
No numerical 90th-percentile result
Numerical coverage
0 comparable results
Missing values remain blank; absence is not treated as a pass.
No comparable measured values reported
Federal SDWIS data does not contain a numerical result and matching benchmark for this profile. Review the compliance history and the utility's Consumer Confidence Report instead.
2026Q2
- All records
- 0
- Health-based
- 0
- Active health-based
- 0
No violation record was returned for the associated systems in the imported lookback window beginning Jan 1, 2021.
No reported violation does not prove that every contaminant was tested or absent; SDWIS measured values are incomplete and lag state records.
Solutions matcher
Your personalized water action plan
Matched to Iowa Colony ZIP 77583 using 192 PPM nearby hardness and 0 reported measurement benchmarks.
Scale protection
High-Capacity Whole House Water Softener
192 PPM is 2× the high-hardness trigger used by this matcher.
Designed to reduce scale on fixtures, water heaters, glassware, and plumbing throughout the home.
Compare whole-house systemsAffiliate disclosure: we may earn a commission from qualifying purchases, at no added cost to you. Product matching is educational and does not replace certified water testing.
Frequently asked
Water questions for Iowa Colony
Is tap water safe in Iowa Colony?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Nearby USGS observations produce an estimate of 192 PPM, or 11.2 grains per gallon, classified as very hard. This is not a household tap measurement.
Do I need a water softener?+
At 192 PPM, a correctly sized whole-house softener can reduce scale and hard-water spotting. It does not replace contaminant filtration.