Cliffs on the Roanoke
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
- 70 people
- Connections
- 32
- Water source
- Groundwater
- Based in
- Rockville, VA
- County
- Mecklenburg
- Owner
- Private
The ZIP code it serves
The short answer
1 result is above the health goal. The worst: Uranium, above the health goal. No health-based violations on file since 2016.
What handles itWhat was found
Arsenic: Virginia’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2021 to 2023.
Uranium, haloacetic acids (HAA5), nitrate, total trihalomethanes (TTHM), fluoride and chromium (total): EPA’s compliance monitoring file, samples taken from March 29, 2012 to Aug. 6, 2019. Newer results are in the utility’s annual water quality report.
Above the health goal1
Uranium
Comes from the source
0.25ppb
Highest yearly average, 2012 to 2014
Averaged by year, the highest was 0.25 ppb, in 2014: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That was also the latest year on file.
What handles it
- NSF/ANSI 58 look for “Uranium”
Below EPA’s limits5
Haloacetic acids (HAA5)
Forms or is added in treatment
55ppb
Highest yearly average, 2012 to 2019
2019: not found
Averaged by year, the highest was 55 ppb, in 2012, below EPA’s legal limit of 60 ppb. In 2019, the latest year on file, it wasn’t found in its one sample.
What handles it
No certification claim covers this compound yet.
Nitrate
Comes from the source
3.5ppm
Highest sample; found in 1 of 9
2019: not found
The highest sample, in 2016, was 3.5 ppm, below EPA’s legal limit of 10 ppm. In 2019, the latest year on file, it wasn’t found in its one sample.
What handles it
- NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
- NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
Total trihalomethanes (TTHM)
Forms or is added in treatment
5.5ppb
Highest yearly average, 2012 to 2019
Averaged by year, the highest was 5.5 ppb, in 2019, below EPA’s legal limit of 80 ppb. That was also the latest year on file.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Fluoride
Forms or is added in treatment
0.24ppm
Highest yearly average, 2014 to 2017
Averaged by year, the highest was 0.24 ppm, in 2017, below EPA’s legal limit of 4.0 ppm. That was also the latest year on file.
What handles it
- NSF/ANSI 58 look for “Fluoride Reduction”
- NSF/ANSI 53 look for “Fluoride”
Chromium (total)
Comes from the source
1.3ppb
Highest yearly average, 2014 to 2017
2017: not found
Averaged by year, the highest was 1.3 ppb, in 2016, below EPA’s legal limit of 100 ppb. In 2017, the latest year on file, it wasn’t found in its one sample.
What handles it
- NSF/ANSI 58 look for “Chromium (Hexavalent) Reduction”
- NSF/ANSI 53 look for “Chromium Reduction”
2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Arsenic
- Lead
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 58
Claim: Uranium
For: Uranium
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
None of the filters TapBuff has checked so far carry these claims. Search the certifier listings for the claim above.
Compare five-year costsViolations since 2016
No health-based violations on file with EPA since 2016.
What this report can’t tell you
Everything else. Arsenic results here are Virginia’s yearly averages as CDC publishes them, from 2021 on, with EPA’s national file for 2012 to 2019. Uranium, haloacetic acids (HAA5), nitrate, total trihalomethanes (TTHM), fluoride and chromium (total) come from EPA’s file alone, which ends in 2019. Cliffs on the Roanoke’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 Virginia cover 2021 to 2023; EPA’s compliance samples are from March 29, 2012 to Aug. 6, 2019.
Testing your own tap
The 3 labs Virginia certifies closest to the area Cliffs on the Roanoke serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
B & B Consultants, Inc.
Chase City, VA · about 22 miles
Certified for bacteria
American Water Testing Company
Alton, VA · about 50 miles
Certified for bacteria
Biotech Laboratory
Chesterfield, VA · about 57 miles
Certified for bacteria
Virginia Household Water Quality Program, Virginia Cooperative Extension: Drinking water clinics in about 70 counties a year, run through local Extension offices: pick up a kit, collect the sample on the set day, and drop it off locally. Each kit tests well, spring or cistern water for 28 things, including bacteria, nitrate, lead and arsenic. $70 a kit, with funding to help if you need it. Virginia Household Water Quality Program.
All 145 certified labs for VirginiaSources
- 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 Virginia supplied to CDC, 2021 to 2023, read Oct. 8, 2026. TapBuff’s comparisons with EPA’s limits are its own, not CDC’s or Virginia’s.
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: DCLS, drinking water laboratories with certification detail, read Oct. 10, 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 VA5117315. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Read up on UraniumWhat each one does to health, where it comes from, and the certification claim that addresses it.About Uranium
- Get the utility’s own reportCliffs on the Roanoke 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