Is Monticello, IN tap water safe?
The short answer
4 of the 7 utilities serving Monticello have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Royal Oaks Homeowners Assn., Inc., The Landings Homeowners Association, Lynn Hill Court & Charles Manor and 1 more.
Monticello Water Works, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 3.6 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Monticello’s ZIP codes, from EPA’s estimates.
- Open report
Monticello Water Works
Indiana · serves 5,300 people · about 160 in Monticello
2 results above the health goal. The worst: Arsenic at 3.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Royal Oaks Homeowners Assn., Inc.
Indiana · serves 390 people · under 100 in Monticello
2 results above the health goal. The worst: Arsenic at 7.3 ppb, above the health goal.
2 health-based violations since 2016
- Open report
Valley View Mobile Home Park
Indiana · serves 50 people · under 100 in Monticello
1 result above the health goal. The worst: Arsenic at 5.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
The Landings Homeowners Association
Indiana · serves 159 people · under 100 in Monticello
1 result above the health goal. The worst: Arsenic at 4.5 ppb, above the health goal.
2 health-based violations since 2016
- Open report
Lake Hill Park - Thayer Inc.
Indiana · serves 104 people · under 100 in Monticello
1 result above the health goal. The worst: Lead at 0.99 ppb, above the health goal.
No health-based violations since 2016
- Open report
Lynn Hill Court & Charles Manor
Indiana · serves 44 people · under 100 in Monticello
1 result above the health goal. The worst: Arsenic at 7.4 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Lakewood Mobile Home Park
Indiana · serves 25 people · under 100 in Monticello
Nothing in its records is above a health goal.
2 health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Monticello Water Works’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic, Lead
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, Lead
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, Lead
Water testing near Monticello
The 3 labs Indiana certifies closest to Monticello, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Chem-A-Lab
Monticello, IN · under a mile
Certified for bacteria
Twin Rivers Medical Laboratory, Inc.
Logansport, IN · about 20 miles
Certified for bacteria
Nwiwt, LLC
Rensselaer, IN · about 24 miles
Certified for bacteria, nitrate
Indiana Department of Health laboratory: Test kits for well water: nitrate, fluoride, and arsenic, lead and copper, ordered from the lab and returned by mail. They are open to the public. Nitrate is $10 a sample plus $6.50 shipping per order, fluoride $10 plus shipping, and the arsenic, lead and copper kit $20 plus $6.50 shipping. Water Testing, Indiana Department of Health.
All 81 certified labs for IndianaZIP codes in Monticello
Which ZIP codes are in Monticello: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Indiana Department of Health, certified drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Monticello
Towns nearby with a page of their own.
What to do next
- Read Monticello Water Works’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water