Horseshoe Mobile Estates
What EPA’s and CDC’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
- 255 people
- Connections
- 109
- Water source
- Groundwater
- Based in
- Garner, NC
- County
- Wake
- Owner
- Private
The ZIP code it serves
The short answer
1 result is above EPA’s legal limit. The worst: Nitrate, above the legal limit. 3 health-based violations since 2016.
What handles itWhat was found
Nitrate, total trihalomethanes (TTHM), arsenic and haloacetic acids (HAA5): North Carolina’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2020 to 2023, with EPA’s 2012 to 2019 file for earlier years.
Chromium (total), fluoride and uranium: EPA’s compliance monitoring file, samples taken from Aug. 22, 2012 to Feb. 14, 2018. Newer results are in the utility’s annual water quality report.
Above the legal limit1
Nitrate
Comes from the source
6.4ppm
Highest yearly average, 2020 to 2023
2023 average: 5.2 ppm
Averaged by year, the highest was 6.4 ppm, in 2022, below EPA’s legal limit of 10 ppm. In 2023, the latest year on file, it averaged 5.2 ppm. EPA judges this limit at each sampling point, and recorded a violation for nitrate at this utility in 2024. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 6.5 ppm, in 2018.
What handles it
- NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
- NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
Below EPA’s limits1
Total trihalomethanes (TTHM)
Forms or is added in treatment
1.8ppb
Highest yearly average, 2022
Averaged by year, the highest was 1.8 ppb, in 2022, below EPA’s legal limit of 80 ppb. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 6.0 ppb, in 2016.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
6 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Arsenic
- Chromium (total)
- Fluoride
- Haloacetic acids (HAA5)
- Lead
- Uranium
What handles it
A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”
- NSF/ANSI 53
Claim: Nitrate/Nitrite (30 ppm challenge)
For: Nitrate
- NSF/ANSI 58
Claim: Nitrate/Nitrite Reduction
For: Nitrate
Other certifiers’ wording: Nitrate
At the tap, or for the whole house?
These come with the water itself, so a whole-house system certified for the same claims treats every tap and shower. A filter at the tap treats drinking water for much less. How whole-house systems compare.
Filters with those claims on a certifier’s listing
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Nitrate
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate
Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate
Violations since 2016
| Contaminant or rule | Type | Period | Measured | Status |
|---|---|---|---|---|
| Nitrate | A sample was above the legal limit, for a contaminant judged one sample at a time.EPA: Maximum Contaminant Level Violation, Single Sample | Jan. 1, 2024 to Dec. 31, 2024 | 11 MG/L | Archived |
| Lead and Copper Rule | A required study or plan for corrosion control was not done on time.EPA: OCCT/SOWT Study/Recommendation | April 1, 2017 | — | Resolved |
| Lead and Copper Rule | Required information about lead was not given to customers.EPA: Public Education | Dec. 2, 2016 | — | Resolved |
| Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 14 monitoring or reporting violations not shown. | ||||
What this report can’t tell you
Everything else. Nitrate, total trihalomethanes (TTHM), arsenic and haloacetic acids (HAA5) results here are North Carolina’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Chromium (total), fluoride and uranium come from EPA’s file alone, which ends in 2019. Horseshoe Mobile Estates’s own annual report, which it must send you every year, has newer results for those and 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; CDC’s yearly averages for North Carolina cover 2020 to 2023; EPA’s compliance samples are from Aug. 22, 2012 to Feb. 14, 2018.
Testing your own tap
The 3 labs North Carolina certifies closest to the area Horseshoe Mobile Estates serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Wake County Human Services-Public Health Ctr.
Raleigh, NC · about 8 miles
Certified for bacteria, nitrate, metals, minerals and other inorganics
Eurofins Built Env. Testing East - Cary
Cary, NC · about 10 miles
Certified for asbestos
Eurofins Raleigh
Cary, NC · about 10 miles
Certified for bacteria, nitrate, minerals and other inorganics
Sources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- CDC Environmental Public Health Tracking Network, yearly averages North Carolina supplied to CDC, 2020 to 2023, read Oct. 8, 2026. TapBuff’s comparisons with EPA’s limits are its own, not CDC’s or North Carolina’s.
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: North Carolina State Laboratory of Public Health, certified drinking water laboratories, read Oct. 11, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID NC0392113. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Read up on NitrateWhat each one does to health, where it comes from, and the certification claim that addresses it.About Nitrate
- Get the utility’s own reportHorseshoe Mobile Estates must send you a water quality report every year. It covers contaminants this page does not show, and has newer results than EPA’s national file for the ones here that come from it.How to read it
- Test your own tap for leadYour service line, solder and fixtures decide the lead at your faucet, not the utility’s average.Lead in your water: what to do
- Compare certified filtersWhat the filters certified for these results cost over five years, cartridges included.Compare five-year costs