Calera Tap Water Quality Report
Calera's water has 3 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for Calera with results above guidelines: BRYAN CO. RW&SD #5 (2 above guidelines)
People Served
2,815
Health-based violations since 2020
32
CALERA PWA. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jun 2022 · CALERA PWA
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Calera Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Calera's water has 3 contaminants above EPA health-based guidelines (MCLGs).
CALERA PWA, Calera's water system, serves 2,815 people. 1 other system is listed for Calera. Each system's results are listed under its own name, never added to CALERA PWA's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CALERA PWA is from Jun 2022.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Oklahoma
Calera Water Service Areas
What these numbers actually mean for Calera, OK
We read Calera, OK’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 3 contaminants above EPA MCLGs, 3 contaminants with an EPA health goal detected in some samples (no level on file) and 14 health-based EPA violations that began after the latest compliance result on file
- 15 results on file
- No PFAS results on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Calera's water
BRYAN CO. RW&SD #5
PWSID OK3000704
BRYAN CO. RW&SD #5 reported 0.82 mg/L, at or above the 0.7 mg/L U.S. Public Health Service recommendation and below the 1.5 mg/L WHO guideline value and NTP neurodevelopment review level.
CALERA PWA
PWSID OK2000702
No fluoride level in our data for CALERA PWA. Your utility's annual water quality report (CCR) lists it.
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Recommended Water Filters for Calera
Based on Calera's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Waterdrop
A1
NSF Certified:
Flow Rate
1 gpm
Highlights:
- Performance certified
- Lower price than Philips
- Hot water dispensing
- Compact design
Removes 5 contaminants:
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA MCLGs, 3 contaminants with an EPA health goal detected in some samples (no level on file) and 14 health-based EPA violations that began after the latest compliance result on file, independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 3 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Calera's water readings can explain
We publish a city-level hardness figure for Calera, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Calera? Public-water results do not apply to private wells. See Bryan County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Calera
Calera's tap water has an estimated 13.7 grains per gallon (235.0 mg/L, county sampling in Bryan County) — very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 13.7 gpg water in Calera — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Oklahoma as a whole, read water softener cost in Oklahoma — priced against the plumber wage published for the state.
Frequently Asked Questions About Calera Tap Water
Calera's water has 3 contaminants above EPA MCLGs. We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. EPA records 14 health-based violations for CALERA PWA that began after its latest compliance result on file (Jun 2022): Maximum Contaminant Level Violation, Average (Total Haloacetic Acids (HAA5)), 8 violations, the first beginning on July 1, 2022 and the latest on April 1, 2023; Maximum Contaminant Level Violation, Average (TTHM), 6 violations, the first beginning on July 1, 2022 and the latest on January 1, 2023. Every such result predates them, so none can show the water met the standard since, and this page does not call the water safe.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CALERA PWA. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CALERA PWA directly.
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