Credentials & Transparency
Why Central Ohio homeowners trust Pure Aqua Columbus
We publish our data sources, explain our methodology, and link directly to every third-party profile that has independently verified our business. No fine print.
Third-party verified profiles
Each of these organizations independently verifies our licensing, insurance, background, and customer satisfaction. Click any badge to view our live profile.
BBB Accredited Business since 2022. We maintain an A+ rating with zero unresolved complaints. The BBB independently verifies business identity, licensing, and complaint history.
View our profileTop-rated on Angi with verified homeowner reviews. Angi screens contractors for licensing, insurance, and background checks before allowing reviews to be published.
View our profileHomeAdvisor-approved and background-screened. HomeAdvisor verifies state licensing, carries out criminal background checks, and confirms insurance coverage before approving contractors.
View our profileWQA member in good standing. The WQA is the leading trade association for the residential water treatment industry. Membership requires adherence to a code of ethics and continuing education standards.
View our profileWater quality data sources
Every hardness value, contaminant level, and treatment recommendation on this site is traceable to one of the following sources.
Columbus Water Works Annual CCR
Government / UtilityConsumer Confidence Reports published annually by Columbus Water Works under EPA Safe Drinking Water Act requirements. Primary source for hardness, chloramine levels, and contaminant data for all Columbus Water Works service areas.
Delaware County Water Annual CCR
Government / UtilityAnnual Consumer Confidence Report from Delaware County Water. Used for Powell, Lewis Center, Galena, and surrounding Delaware County service areas.
Ohio EPA Drinking Water Watch
State RegulatoryOhio EPA's public database of water system test results, violations, and monitoring data. Used to cross-reference utility-reported values and identify PFAS and nitrate concerns.
Pure Aqua Columbus Field Test Records
Proprietary Field DataAnonymized water test results collected during free in-home water tests across Central Ohio since 2018. Over 1,200 records across 30+ ZIP codes. Used to validate and refine utility-reported hardness values — field tests often reveal distribution-level variation not captured in utility averages.
USGS National Water Information System
Federal ScientificUSGS groundwater monitoring data for Central Ohio aquifers. Used for well-water hardness and iron estimates in rural Delaware, Licking, and Union counties.
Licking County Health District / Newark Water CCR
Government / UtilityAnnual reports from Newark Water and Licking County Health District. Used for Newark, Granville, Pataskala, and Johnstown water quality data.
Our data methodology
How we reconcile conflicting sources and ensure the numbers you see reflect what actually comes out of your tap.
Field tests take precedence over utility averages
When our anonymized field test records show a consistent pattern that differs from a utility's reported average, we use the field-test median. Utility averages are measured at the treatment plant — hardness and iron levels can vary significantly by the time water reaches your tap.
All values carry a lastVerified date
Every hardness value in our canonical data layer includes a lastVerified date and a source note. We review and update values annually when new CCRs are published, and immediately when field test data reveals a significant discrepancy.
ZIP-level data uses weighted aggregates
ZIP code reports aggregate field test records within that ZIP. Hardness is reported as a range (min–max) and a typical value (median). ZIPs with fewer than 5 field test records fall back to the city-level canonical value.
Conflicts are documented, not hidden
When data sources disagree, we document the conflict in our canonical data layer with a resolution note explaining which source we used and why. We do not silently pick the most alarming value to drive conversions.
See what your water actually looks like
A free in-home water test takes 20 minutes and gives you lab-grade results — no sales pressure, no obligation.
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