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Non-Transient Non-Community Water System · PWS OR4191914

Manzanita Elementary

Operator location Grants Pass, Oregon - smaller served population (≤ 999) at 465 people served; 30 SDWIS violations on record from groundwater sources.

465
People served (this PWS)
30
EPA violations (this PWS)
4
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Manzanita Elementary standing, mid SDWIS violation third

465 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 13% is middle-third health share (≤ 23%).

The verdict

Manzanita Elementary lands in the middle third by violation volume (30), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (465; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 13% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.

30
Total EPA violations on record
13%
Health-based (MCL / treatment failure)
465
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.

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
5
County
Josephine
School/Daycare
Yes
MCL Violations
1
Monitoring Violations
26
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
DICHLOROMETHANE MR 6 2009
Lead and Copper Rule TT 3 2000
Antimony, Total MR 2 2005
Beryllium, Total MR 2 2005
Nickel MR 2 2005
Thallium, Total MR 2 2005
CYANIDE MR 2 2005
Coliform (TCR) MR 1 2001
Lead and Copper Rule MR 1 1994
Barium MR 1 2005
Mercury MR 1 2005
Cadmium MR 1 2005
Chromium MR 1 2005
Fluoride MR 1 2005
Selenium MR 1 2005
Nitrate MR 1 2001
DICHLOROMETHANE MCL 1 2005
Arsenic MR 1 1999

Violation Count vs. the National Corpus

Manzanita Elementary has 30 recorded EPA violations, 42% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 57% carry more. 13% of this system's own violations are health-based (4 of 30), 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)

30 Lower than most fewer violations than 57% 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 Manzanita Elementary

EPA SDWIS lists 465 people served and 5 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.

Sources: EPA SDWIS

Nationwide peers

30 violations · 465 served: nearest cross-state SDWIS matches.

What to do with Manzanita Elementary

Use this system's EPA-reported record as a starting filter, not a final verdict.

  • See how every tracked system in Oregon compares on the same EPA violation measures. Oregon 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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater