INFORMATION #1 06-26-1995INFORiVI~-`i'i®N ~ e~
Minnesota Pollution Control Agen
~_
June 1, 1995
The Honorable Hank Duitsman
Mayor, City of Elk River
City Hall
13065 Orono Parkway
Elk River, Minnesota 55330-1900
PW: Elk River Muni~pal Wastewater Treatrnent Facility
NPDES Permit No. MN 0020788
Compliance Monitoring Survey
Dear Mayor I)uitsman:
Enclosed is a copy of the Compliance Monitoring Survey report which resulted from an inspection of
the Elk River Municipal Wastewater Treatment Facility conducted on May 24, 1994, by Ken LeVou
of the Minnesota Pollution Control Agency (MPCA) Brainerd Regional Office.
• The Compliance Monitoring Survey consisted of a visual inspection of the fact7ity and a review of the
monthly Discharge Monitoring Reports. Based on the results of the Compliance Monitoring Survey,
the facility was found to be in compliance with the terms and conditions set forth in the facility's
NPDES permit. Please refer to the attached Inspection Summary.
No further response to this report is necessary.
If you have arty questions concerning this letter or the Compliance Monitoring Survey report, please
call me at the Brainerd office, (218) 828-2492, or on my cellular phone at (218) 820-6939.
Sincerely, ! ~~ n ~ / //~v
Kenneth C. LeVoir
Inspector
ce: Darrell Mack, Operator
Enclosure
• 1601 Minnesota Drive; Brainerd, Minnesota 56401; (218) 828-2492, FAX (218) 828-2594
Central Office: St. Paul Regional Offices: Duluth • Brainerd • Detroit Lakes • Marshall • Rochester
Telephone Device for the Deaf (TDD): (S00) 627-3529
Equal Opportunity Employer • Printed nn recycled paper containing at least 10 % fibers from paper recycled by consumers
INSPECITON SUMMARY
A Compliance Monitoring Survey was conducted on May 25, 1995 by the Mmnesota Pollution
• Control Agency (MPCA) to determine the compliance status of the facility with the terms and
conditions of its NPDES Permit. The following is a summary of the findings and comments resulting
from that inspection.
COMIV>rE1vTS:
The city has seen several effiuent exceedances during 1994 for BOD, TSS and fecals. With the
installation of anultra-violet disinfection unit in May and the completion of a high-rate trickling
Sher tower in November, the facility is now back in compliance.
2. Mr. Mack and his staffhave done an excellent job in continuing to operate the plant during the
constur ion Y~icd and reru... tc wmpliaace.
3. The laboratory on-site is certified in the tests performed. Afl other teeing is performed by a
certified contract lab.
4. Current flow is averaging about 0.64 mgd with a design of 1.1 mgd. A planned excpansion
which will occur over the next two years will give the city a design flow of 2.2 mgd.
5. Mr. Mack has discovered that maintenance for tbe uhra-violet tubes must occur more often
and takes longer to perform than designed. Different cleaning products are being evaluated in
an attempt to reduce the maintenance. The facility continues to meet permit limits for fecals.
6. Biosolids are disposed of on a city-owned site. Land application equipment is being evaluated
in an attempt to improve the efficiency of the program.
DEFICIENCIES/C0l3RECIIVE ACTIONS:
Pemut effiuent violations noted for the Discharge Monitoring Period ofMay, 1994 to
April,1995 are:
Fecal coliform: May, August, September, October, November, 1994;
CBODS: March, April, May, June, September, October, November, 1994;
TSS % removed: May, June, 1994;
COD % removed: March, April, May, May, June, September, November, 1994
•
2. With the completion of the Ultra-Violet disinfection unit in May and the I3'igh-Rate Trickling
Filter in November, the facility has returned to compliance.
Signature of Inspector ~ ~ Date ,6~/~ -~"
MPCA, 16011~fmnesota Drrve, Brained, Mn 56401 [218-828-2492] N'
Faality: Elk River Municipal Wastewater Treatment Facility Peanit Expiration: 6/30/96 Class: B
Address: City Hall, 13065 Orono Parkway
Elk River, lbTmnesota 55330.1900 Phone: (612) 441-7420
Responsible Official: Hank Duitsman Title: Mayor
Operator: Darrell Mack Certifications/Expiration: Class A 7/1/96
Transaction Code: N NPDES/SDS #: MN 0020788 Inspection Date: 5/24/95
Inspection Type: C Inspector Code: S Facility Type: 1
Facility Representatives Titles
Darrell Mack Wastewater Superintendent
actor Ken LeVoir
AREAS EVALUATED DURING INSPECTION
Collection System Process Control X Records
Lift Stations Laboratory X Reporting X
Flow Measuremerrt/ Maintenance Discharge Monitoring
Instnunenta6on X Program X Reports X
Treatment System X Sampling Effiuent Data X
Disinfection X Pretreatment Compliance Schedule
Dechlorination NA Solids Handling X Other
Compliance Status: Compliance
•