Non-Transient Non-Community Water System · PWS MI2065403
Tuinstra Greenhouse
Operator location Shelbyville, Michigan - smaller served population (≤ 999) at 35 people served; 83 SDWIS violations on record from groundwater sources.
- 35
- People served (this PWS)
- 83
- EPA violations (this PWS)
- 8
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Tuinstra Greenhouse standing, high SDWIS violation third
35 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 10% is middle-third health share (≤ 23%).
The verdict
Tuinstra Greenhouse sits in the upper third of the sitemap cohort by violation count (83), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (35; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 10% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 83
- Total EPA violations on record
- 10%
- Health-based (MCL / treatment failure)
- 35
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
Based on EPA SDWIS violation history and UCMR5 PFAS testing only, not water taste, odor, infrastructure age, or contaminants outside the federally tracked set.
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 2
- County
- Allegan
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 75
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 8 | 2014 |
| Arsenic | MR | 8 | 2024 |
| Barium | MR | 4 | 2014 |
| Chromium | MR | 4 | 2014 |
| Mercury | MR | 4 | 2014 |
| Antimony, Total | MR | 4 | 2014 |
| Selenium | MR | 4 | 2014 |
| Cadmium | MR | 4 | 2014 |
| Beryllium, Total | MR | 4 | 2014 |
| Thallium, Total | MR | 4 | 2014 |
| Nitrate | MR | 3 | 2017 |
| Revised Total Coliform Rule | MON | 3 | 2019 |
| Coliform (TCR) | MR | 2 | 2010 |
| Lead and Copper Rule | MR | 2 | 2010 |
| BHC-GAMMA | MR | 1 | 2011 |
| OXAMYL | MR | 1 | 2011 |
| Simazine | MR | 1 | 2011 |
| Picloram | MR | 1 | 2011 |
| Hexachlorocyclopentadiene | MR | 1 | 2011 |
| Aldicarb sulfoxide | MR | 1 | 2011 |
| Aldicarb sulfone | MR | 1 | 2011 |
| Carbofuran | MR | 1 | 2011 |
| Aldicarb | MR | 1 | 2011 |
| Atrazine | MR | 1 | 2011 |
| LASSO | MR | 1 | 2011 |
| Heptachlor | MR | 1 | 2011 |
| 2,4,5-TP | MR | 1 | 2011 |
| Pentachlorophenol | MR | 1 | 2011 |
| Chlordane | MR | 1 | 2011 |
| Nickel | MR | 1 | 2014 |
Violation Count vs. the National Corpus
Tuinstra Greenhouse has 83 recorded EPA violations, 69% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 31% carry more. 10% of this system's own violations are health-based (8 of 83), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
83 Around the middle fewer violations than 31% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Population served record for Tuinstra Greenhouse
EPA SDWIS lists 35 people served and 2 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Michigan EGLE, Drinking Water and Environmental Health Division
Nationwide peers
83 violations · 35 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Tuinstra Greenhouse
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Michigan compares on the same EPA violation measures. Michigan systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.