Granger Subdivision

What EPA’s and Texas’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves: 60 people
Connections: 17
Water source: Groundwater
Based in: Houston, TX
County: Harris
Owner: Private

The ZIP code it serves

77049

The short answer

Nothing in EPA’s and Texas’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.

What was found

Fluoride, nitrate, arsenic, chromium (total), haloacetic acids (HAA5), total trihalomethanes (TTHM) and uranium: Texas’s own results, samples taken from May 26, 2020 to May 20, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits2

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.36ppm

Highest yearly average, 2020 to 2026

2026: not found

Averaged by year, the highest was 0.36 ppm, in 2020, below EPA’s legal limit of 4.0 ppm. In 2026, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.37 ppm, in 2017.

What handles it

NSF/ANSI 58 look for “Fluoride Reduction”
NSF/ANSI 53 look for “Fluoride”

Nitrate

Comes from the source

Below EPA’s limits

0.17ppm

Highest sample; found in 2 of 7

2026: not found

The highest sample, in 2023, was 0.17 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.02 ppm, in 2017.

What handles it

NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

6 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.

Arsenic
Chromium (total)
Haloacetic acids (HAA5)
Lead
Total trihalomethanes (TTHM)
Uranium

Violations since 2016

No health-based violations on file with EPA since 2016. There are 67 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

Everything else. Fluoride, nitrate, arsenic, chromium (total), haloacetic acids (HAA5), total trihalomethanes (TTHM) and uranium results here are Texas’s own from 2020 on, with EPA’s national file for 2012 to 2019. Granger Subdivision’s own annual report, which it must send you every year, has the contaminants this page does not show.
Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.
Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Texas’s results run from May 26, 2020 to May 20, 2026.

Testing your own tap

Granger Subdivision’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Texas certifies.

The 3 labs Texas certifies closest to the area Granger Subdivision serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

A & B Environmental Services, Inc.
Houston, TX · about 8 miles
Certified for bacteria, lead and copper
(713) 453-6060
City of Houston Health Department, Bureau of Laboratory Services
Houston, TX · about 17 miles
Certified for bacteria
(832) 393-3939
Water Utility Services, Inc.
Spring, TX · about 25 miles
Certified for bacteria
(281) 290-0704

Texas Well Owner Network, Texas A&M AgriLife Extension: Well Informed screening events, where well owners bring in water samples to be screened for common contaminants, followed by an hour-long session explaining the results. Upcoming events are on the network's calendar. Trainings, Texas Well Owner Network.

All 80 certified labs for Texas