Marana Tap Water Quality Report
Marana's water has 7 contaminants above EPA MCLGs. We recommend using a certified water filter.
No single water system serves most of Marana (62,380 residents, Census 2024 estimate). Its large systems are MARANA MUNICIPAL - MARANA (EPA counts 10,773 people served, about 17% of Marana's population); TUCSON CITY OF (EPA counts 732,906 people served, more than Marana's population). EPA's counts may include people served outside Marana, so each share is at most that. Check which one bills you: each system's figures are shown separately below.
- MARANA MUNICIPAL - MARANA: 116 contaminants tested, 7 above EPA MCLGs; health-based violations since 2020: 0
- TUCSON CITY OF: 120 contaminants tested, 5 above EPA MCLGs; health-based violations since 2020: 0
1 other system serving parts of Marana reports results above guidelines — check which system bills you. MARANA MUNICIPAL - PICTURE ROCKS (4 above guidelines)
Other systems listed for Marana with results above guidelines: TUCSON CITY OF (5 above guidelines)
Water systems
2 large systems
Residents (Census 2024)
62,380
Health-based violations since 2020
0
MARANA MUNICIPAL - MARANA. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Mar 2024 · MARANA MUNICIPAL - MARANA
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Marana Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Marana's water has 7 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Marana's water.
MARANA MUNICIPAL - MARANA, Marana's water system, serves 10,773 people. 1 other system also serves parts of Marana. 1 other system is listed for Marana. Each system's results are listed under its own name, never added to MARANA MUNICIPAL - MARANA's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for MARANA MUNICIPAL - MARANA is from Mar 2024.
In EPA's 2023–2026 UCMR 5 testing, MARANA MUNICIPAL - MARANA measured lithium at up to 43.6 µg/L, which EPA counts as above its health reference level of 10 µg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Arizona
Marana Water Service Areas
What these numbers actually mean for Marana, AZ
We read Marana, AZ’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.
- 7 contaminants above EPA MCLGs and 6 contaminants with an EPA health goal detected in some samples (no level on file)
- 114 results on file
- 23 PFAS compounds on record
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Recommended Water Filters for Marana
Based on Marana's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
AquaTru
Classic
NSF Certified:
Flow Rate
0.04 gpm
Daily Production
600 gpd
Highlights:
- Best overall contaminant reduction score
- Most performance certifications
- Lifetime warranty
- NSF-42, NSF-53, NSF-58, NSF-401 certified
Removes 23 contaminants:
+18 more
Molybdenum, Barium, Chlorine, Arsenic, 83+ contaminants, Calcium, Chloride, Copper, Magnesium, Nitrate, Phosphorus, Sodium, Sulfate, Total Dissolved Solids, Zinc, Total THMs, Chloroform, Nitrate (as N)
AquaTru
Carafe
NSF Certified:
Flow Rate
0.3 gpm
Daily Production
4 gpd
Highlights:
- Verified PFAS reduction
- Glass collection vessel
- Plug-and-play installation
- NSF-53, NSF-42, NSF-58, NSF-401, NSF-372 certified
Removes 17 contaminants:
+12 more
Arsenic, 83+ contaminants, Copper, Total THMs, Chloroform, Chloride, Sulfate, Nitrate (as N), Molybdenum, Barium, Strontium, Uranium
Waterdrop
G3 P600
NSF Certified:
Flow Rate
600 gpm
Daily Production
600 gpd
Highlights:
- Space-saving design
- Good contaminant reduction
- NSF-58 certified
Removes 4 contaminants:
Waterdrop
G3 P800
NSF Certified:
Flow Rate
800 gpm
Daily Production
800 gpd
Highlights:
- High water production rate
- Modern design
- No tank needed
- NSF-42, NSF-53, NSF-58, NSF-372 certified
Removes 15 contaminants:
+10 more
Chlorine, Copper, Manganese, Potassium, Selenium, Total Dissolved Solids, Nitrate, Chloride, Sodium, Strontium
Filters for what Marana reported
Verify Your Water Quality with Independent Testing
With 7 contaminants above EPA MCLGs and 6 contaminants with an EPA health goal detected in some samples (no level 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
PFAS Forever Chemicals Test
$339.95
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
With 7 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 Marana's water readings can explain
We publish a city-level hardness figure for Marana, 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 Marana? Public-water results do not apply to private wells. See Pima County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Marana
Marana's tap water has an estimated 12.3 grains per gallon (210.0 mg/L, county sampling in Pima 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 12.3 gpg water in Marana — 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 Arizona as a whole, read water softener cost in Arizona — priced against the plumber wage published for the state.
Frequently Asked Questions About Marana Tap Water
Marana's water has 7 contaminants above EPA MCLGs. We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Marana's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach MARANA MUNICIPAL - MARANA. For a problem with your water now (discolored water, no water, low pressure, a leak), contact MARANA MUNICIPAL - MARANA directly.
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