ZipCheckup grade for 73527: A.
The model grade is high, but the records on this page include findings worth reviewing.
Your top priority: match a filter's certification to the violations (19 health-based violations). Check your ZIP → NSF certified filters
Cache, OK (73527): 19 Health-Based Violations Recorded for Mapped Water Systems - 89/100
EPA data combined for 6 water systems mapped to this ZIP (largest mapped system: Comanche Company Rwd #4)
Health-based violation records by water system:
EPA records for the water systems mapped to 73527 in Cache, OK contain 32 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 19 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 19 health-based violations and 13 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.0015 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
- Flood 89 cumulative NFIP claim records. Check the current FEMA map for a specific address.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 73527. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
Score Breakdown
Overall Home Safety Score: 89/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (7) CRITICAL
Your Water System
ZIP code 73527 in Cache, Oklahoma is mapped to the water system Comanche Company Rwd #4 (EPA ID: OK3001654). This system provides water to approximately 3,000 people from surface water sources.
There are 6 community water systems serving this area.
Lead & Copper in Your Water
The EPA requires water systems to monitor lead and copper levels under the Lead and Copper Rule.
| Metal | Measured Level | EPA Action Level | Status | Sample Date or Period |
|---|---|---|---|---|
| Copper | Action-level exceedance on record | 1.3 mg/L | Exceeds action level | Not present in ZipCheckup accepted source data |
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Comanche Company Rwd #4 | OK3001654 | 3,000 | Surface water |
| Cache | OK2001607 | 2,371 | Groundwater |
| Cotton Company Rwd #2 | OK2001702 | 3,000 | Groundwater |
| Tillman Company Rwd #1 | OK2007107 | 1,500 | Surface water |
| Chattanooga Public Water System | OK2001608 | 627 | Groundwater |
Other Water Quality Reports in Oklahoma
- 73001 (Albert)
- 73002 (Alex) - 39 violations recorded for mapped water systems
- 73003 (Edmond)
- 73004 (Amber) - 166 violations recorded for mapped water systems
- 73005 (Anadarko) - 102 violations recorded for mapped water systems
- 73006 (Apache) - 39 violations recorded for mapped water systems
- 73007 (Arcadia) - 30 violations recorded for mapped water systems
- 73008 (Bethany) - 7 violations recorded for mapped water systems
- 73009 (Binger) - 14 violations recorded for mapped water systems
- 73010 (Blanchard) - 677 violations recorded for mapped water systems
- 73011 (Bradley) - 105 violations recorded for mapped water systems
- 73012 (Edmond) - 8 violations recorded for mapped water systems
- 73013 (Edmond) - 8 violations recorded for mapped water systems
- 73014 (Calumet) - 90 violations recorded for mapped water systems
- 73015 (Carnegie) - 6 violations recorded for mapped water systems
- 73016 (Cashion) - 195 violations recorded for mapped water systems
- 73017 (Cement) - 109 violations recorded for mapped water systems
- 73018 (Chickasha) - 191 violations recorded for mapped water systems
- 73019 (Norman) - 3 violations recorded for mapped water systems
- 73020 (Choctaw) - 290 violations recorded for mapped water systems
Nearby Water Quality Reports
- 73552 (Indiahoma) - 7 mi - 26 violations recorded for mapped water systems
- 73506 (Lawton) - 9 mi
- 73505 (Lawton) - 9 mi - 30 violations recorded for mapped water systems
- 73557 (Medicine Park) - 10 mi
- 73540 (Faxon) - 11 mi - 17 violations recorded for mapped water systems
- 73558 (Meers) - 12 mi
- 73503 (Fort Sill) - 13 mi - 6 violations recorded for mapped water systems
- 73502 (Lawton) - 13 mi
- 73507 (Lawton) - 13 mi - 11 violations recorded for mapped water systems
- 73528 (Chattanooga) - 13 mi - 33 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Comanche Company Rwd #4 (OK3001654) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Compliance History
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) OK
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Cache
Based on local data for ZIP 73527, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Cache has 89 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Roofing Inspection & Repair
Active weather alerts in Oklahoma increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 73527 safe to drink?
EPA SDWIS records 32 violations since 2021 across the water systems mapped to ZIP 73527 (primary system: Comanche Company Rwd #4), including 19 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 73527's water come from?
The recorded water source for Comanche Company Rwd #4, a system mapped to ZIP code 73527, is Surface water. This system serves approximately 3,000 people.
How does Cache water compare to the national average?
Cache's Home Safety Score ranks better than 81% of U.S. ZIP codes, and at or above 50% within Oklahoma.
How can I get my water tested in Cache?
If Comanche Company Rwd #4 supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 73527 tap water?
The Lead and Copper Rule record selected for 73527 reports a 90th-percentile lead result of 0.00153 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 73527?
73527 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Comanche County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 73527?
FEMA records contain 89 flood insurance claims filed in ZIP code 73527; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Cache, OK (73527): 19 Health-Based Violations Recorded for Mapped Water Systems - 89/100. https://zipcheckup.com/report/73527/
@misc{zipcheckup-report-73527,
author = {{ZipCheckup}},
title = {{Cache, OK (73527): 19 Health-Based Violations Recorded for Mapped Water Systems - 89/100}},
year = {2026},
url = {https://zipcheckup.com/report/73527/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 73527
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 73552 | Indiahoma, OK | 6.8 mi | N/A | 26 |
| 73506 | Lawton, OK | 9.1 mi | N/A | 0 |
| 73505 | Lawton, OK | 9.1 mi | A | 30 |
| 73557 | Medicine Park, OK | 10.3 mi | N/A | 0 |
| 73540 | Faxon, OK | 10.8 mi | N/A | 17 |
| 73558 | Meers, OK | 11.9 mi | N/A | 0 |
| 73503 | Fort Sill, OK | 12.6 mi | A | 6 |
| 73502 | Lawton, OK | 12.8 mi | N/A | 0 |
| 73507 | Lawton, OK | 12.9 mi | A | 11 |
| 73528 | Chattanooga, OK | 13.1 mi | N/A | 33 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings
ZIP 73527 scores in the top tier nationally.