Public water system record

De Pere Waterworks Sa 1

Serves De Pere, Brown County, WI · 25,660 people served

Federal records show no health-based violations and no monitoring or reporting issues for De Pere Waterworks Sa 1 in the last ten years.

  • WI4050453
  • DE PERE
  • WI
  • 25,660 served

System profile

Source water Purchased surface water
ZIP 54115
EPA system ID WI4050453

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • De Pere Waterworks Sa 1 buys its water from Central Brown Co Water Authority.
  • Most recent formal enforcement: compliance order (no penalty) by Wisconsin, December 2003.
  • Record on file since 1978, with 23 health-based violations before October 19, 2016.
  • Lead pipe inventory: 1 lead and 879 unknown out of 7,651 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016, and no monitoring or reporting violations either.

Full record since 1978

EPA's records for De Pere Waterworks Sa 1 go back to 1978. Before October 19, 2016 they list 23 health-based violations (20 resolved, 3 archived by EPA without a recorded fix) and 4 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 1 0
1980s 2 0
1990s 10 0
2000s 10 2
2010 to October 18, 2016 0 2

Most recent health-based violation before October 19, 2016: Gross Alpha, Excl. Radon and U, began October 2001, Resolved.

Show all 23 health-based violations before October 19, 2016
Contaminant Start date Status
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 28 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
Oct 1, 2001 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
Oct 1, 2001 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.5 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Jul 1, 2001 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.25 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
Jul 1, 2001 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.82 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
Jan 1, 2001 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
Jan 1, 2001 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25.25 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
Jan 1, 2001 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.83 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
Jan 1, 2001 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27 pCi/L, federal limit 15 pCi/L (1.8 times the limit)
Jan 1, 2000 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.6 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
Jan 1, 2000 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.7 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
Jan 1, 1999 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
Jan 1, 1999 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 34 pCi/L, federal limit 15 pCi/L (2.3 times the limit)
Jan 1, 1998 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.8 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
Jan 1, 1998 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 43 pCi/L, federal limit 15 pCi/L (2.9 times the limit)
Jan 1, 1997 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.3 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
Jan 1, 1997 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.6 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
Jan 1, 1996 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 31 pCi/L, federal limit 15 pCi/L (2.1 times the limit)
Jan 1, 1996 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
Jan 1, 1995 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.9 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Jan 1, 1995 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Sep 16, 1987 Archived
Fluoride
Contaminant limit exceeded
Oct 1, 1984 Archived
Fluoride
Contaminant limit exceeded
Oct 31, 1978 Archived

Enforcement actions

Wisconsin regulators took 1 formal enforcement action against De Pere Waterworks Sa 1 in 2003, filed as 20 records in EPA's data. The most recent was a compliance order (no penalty) in December 2003.

Date By Action Violations covered
Dec 15, 2003 Wisconsin Compliance order (no penalty) 20 violations (20 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228)

Where the water comes from

De Pere Waterworks Sa 1 buys its water from Central Brown Co Water Authority. EPA also lists 4 wells, all for emergency, seasonal or other part-time use.

Buys water from

Annual water quality report

De Pere Waterworks Sa 1 must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Wisconsin.