Ironwood Camp
What EPA’s and California’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
- 45 people
- Connections
- 101
- Water source
- Groundwater
- Based in
- Newberry Springs, CA
- County
- San Bernardino
- Owner
- Private
- Hardness
- Soft
The ZIP code it serves
The short answer
2 results are above EPA’s legal limit, and 1 more is above the limit’s level with no violation recorded. The worst: Arsenic, above the legal limit. 47 health-based violations since 2016.
What handles itWhat was found
Arsenic, fluoride, total trihalomethanes (TTHM), chromium (total), haloacetic acids (HAA5), nitrate and uranium: California’s own results, samples taken from Jan. 2, 2020 to July 7, 2026, with EPA’s 2012 to 2019 file for earlier years.
Above the legal limit2
Arsenic
Comes from the source
33.3ppb
Highest yearly average, 2020 to 2026
2026 average: 12.4 ppb
Averaged by year, the highest was 33.3 ppb, in 2024, about 3.3 times EPA’s legal limit of 10 ppb. Its highest single sample was 51 ppb. In 2026, the latest year on file, its 22 samples averaged 12.4 ppb, above the limit. EPA recorded violations for arsenic at this utility in 2020 and 2025. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 42 ppb, in 2012, and EPA recorded violations in 2012, 2013, 2014, 2015, 2016, 2017, 2018 and 2019.
What handles it
- NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
- NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
Fluoride
Forms or is added in treatment
4.5ppm
Highest yearly average, 2020 to 2026
2026 average: 1.7 ppm
Averaged by year, the highest was 4.5 ppm, in 2021, above EPA’s legal limit of 4.0 ppm. Its highest single sample was 6.4 ppm. In 2026, the latest year on file, its 24 samples averaged 1.7 ppm. EPA recorded violations for fluoride at this utility in 2020, 2021, 2022 and 2023. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 5.2 ppm, in 2014, and EPA recorded violations in 2012, 2013, 2014, 2015, 2016, 2017, 2018 and 2019.
What handles it
- NSF/ANSI 58 look for “Fluoride Reduction”
- NSF/ANSI 53 look for “Fluoride”
Above the limit’s level, no violation recorded1
Total trihalomethanes (TTHM)
Forms or is added in treatment
84.4ppb
Highest yearly average, 2021 to 2026
2026 average: 48.7 ppb
Averaged by year, the highest was 84.4 ppb, in 2025, above EPA’s legal limit of 80 ppb. Its highest single sample was 85.4 ppb. In 2026, the latest year on file, its three samples averaged 48.7 ppb. EPA judges this limit on running averages at each sampling point, and recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Results like these with no violation often include water sampled before treatment or blending; the utility’s annual report says what reaches the tap.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Below EPA’s limits2
Chromium (total)
Comes from the source
85ppb
Highest yearly average, 2021 to 2026
2026: not found
Averaged by year, the highest was 85 ppb, in 2023, below EPA’s legal limit of 100 ppb. Its highest single sample was 170 ppb. In 2026, the latest year on file, it wasn’t found in any of its two samples. EPA recorded no violation for chromium (total) at this utility since 2020.
What handles it
- NSF/ANSI 58 look for “Chromium (Hexavalent) Reduction”
- NSF/ANSI 53 look for “Chromium Reduction”
Haloacetic acids (HAA5)
Forms or is added in treatment
16.8ppb
Highest yearly average, 2022 to 2026
2026 average: 10.7 ppb
Averaged by year, the highest was 16.8 ppb, in 2025, below EPA’s legal limit of 60 ppb. Its highest single sample was 17.8 ppb. In 2026, the latest year on file, its three samples averaged 10.7 ppb.
What handles it
No certification claim covers this compound yet.
3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Lead
- Nitrate
- 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
Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Fluoride, Trihalomethanes (TTHM) Reduction
For: Arsenic, Fluoride, Total trihalomethanes (TTHM)
Other certifiers’ wording: Arsenic (III) (50 ppb influent level); VOC Reduction
- NSF/ANSI 58
Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Fluoride Reduction, Trihalomethanes (TTHM) Reduction
For: Arsenic, Fluoride, Total trihalomethanes (TTHM)
Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)
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: Arsenic, Fluoride, Total trihalomethanes (TTHM)
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: Arsenic, Fluoride, Total trihalomethanes (TTHM)
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Fluoride, Total trihalomethanes (TTHM)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 58checked Oct. 9, 2026
Certified for: Arsenic, Fluoride
Under-sink reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58checked Oct. 4, 2026
Certified for: Fluoride
Hardness
Soft, typically 4 mg/L (0.2 grains per gallon), across 4 sampling points, 2020 to 2026.
Hardness is calcium and magnesium. EPA sets no limit for it: it shows up as scale on fixtures and in water heaters, and as soap that won’t lather. USGS calls water above 60 mg/L moderately hard, above 120 hard and above 180 very hard.
Violations since 2016
| Contaminant or rule | Type | Period | Measured | Status |
|---|---|---|---|---|
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2025 to Dec. 31, 2025 | 0.036 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2025 to Sept. 30, 2025 | 35.4 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2023 to March 31, 2023 | 4.1 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2022 to Dec. 31, 2022 | 4.4 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2022 to Sept. 30, 2022 | 4.4 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2022 to June 30, 2022 | 4.5 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2022 to March 31, 2022 | 4.9 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2021 to Dec. 31, 2021 | 4.4 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2021 to Sept. 30, 2021 | 5.0 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2021 to March 31, 2021 | 5.0 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2020 to Dec. 31, 2020 | 4.5 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2020 to June 30, 2020 | 4.2 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2020 to June 30, 2020 | 36 UG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2020 to March 31, 2020 | 33.3 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2020 to March 31, 2020 | 4.3 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2019 to Dec. 31, 2019 | 4.8 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2019 to Dec. 31, 2019 | 42.5 UG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2019 to Sept. 30, 2019 | 42 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2019 to Sept. 30, 2019 | 4.9 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2019 to June 30, 2019 | 43.8 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2019 to June 30, 2019 | 4.9 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2019 to March 31, 2019 | 20.4 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2019 to March 31, 2019 | 4.9 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2018 to Dec. 31, 2018 | 4.9 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2018 to Dec. 31, 2018 | 41.5 UG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2018 to Sept. 30, 2018 | 39 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2018 to Sept. 30, 2018 | 5.0 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2018 to June 30, 2018 | 5.0 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2018 to June 30, 2018 | 37 UG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2018 to March 31, 2018 | 33 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2018 to March 31, 2018 | 5.0 MG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2017 to Dec. 31, 2017 | 5.0 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2017 to Dec. 31, 2017 | 36 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2017 to Sept. 30, 2017 | 4.9 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | July 1, 2017 to Sept. 30, 2017 | 36 UG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2017 to June 30, 2017 | 36 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | April 1, 2017 to June 30, 2017 | 4.9 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2017 to March 31, 2017 | 39 UG/L | Resolved |
| Fluoride | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Jan. 1, 2017 to March 31, 2017 | 5.0 MG/L | Resolved |
| Arsenic | The running average was above the legal limit.EPA: Maximum Contaminant Level Violation, Average | Oct. 1, 2016 to Dec. 31, 2016 | 35 UG/L | Resolved |
| Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 2 monitoring or reporting violations not shown. | ||||
What this report can’t tell you
Everything else. Arsenic, fluoride, total trihalomethanes (TTHM), chromium (total), haloacetic acids (HAA5), nitrate and uranium results here are California’s own from 2020 on, with EPA’s national file for 2012 to 2019. Ironwood Camp’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; California’s results run from Jan. 2, 2020 to July 7, 2026.
Testing your own tap
The 3 labs California certifies closest to the area Ironwood Camp serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Geo-Monitor, Inc
Hesperia, CA · about 47 miles
Certified for bacteria
BSK Associates - San Bernardino Analytical Laboratory
San Bernardino, CA · about 68 miles
Certified for bacteria
Clinical Laboratory of San Bernardino, Inc.
Grand Terrace, CA · about 71 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Sources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- California State Water Resources Control Board, Division of Drinking Water, results from Jan. 1, 2020 to July 17, 2026, read Oct. 8, 2026
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation, read Oct. 17, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Hardness: California State Water Resources Control Board, Division of Drinking Water, results from Jan. 2, 2020 to March 4, 2026, read Oct. 10, 2026
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID CA3601015. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Read up on the 3 results above a lineWhat each one does to health, where it comes from, and the certification claim that addresses it.Start with Arsenic
- Get the utility’s own reportIronwood Camp must send you a water quality report every year. It covers contaminants this page does not show.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