Iowa Department of Natural Resources_Airport Wastewater Treatment FacilityMasterpiece on the Mississippi
TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: Dubuque Regional Airport Inspection Report
DATE: June 17, 2010
Water Pollution Control Plant Manager Jonathan Brown has supplied information
related to the June 11, 2010 letter from the Iowa Department of Natural Resources on
the Dubuque Regional Airport Wastewater Treatment Facility Inspection.
Michael C. Van Milligen
MCVM:jh
Attachment
cc: Barry Lindahl, City Attorney
Cindy Steinhauser, Assistant City Manager
Jonathan R. Brown, Water Pollution Control Plant Manager
Dubuque
kritri
All- AmedcaCiry
2007
Masterpiece on the Mississippi
Michael C. Van Milligen, City Manager
TO:
FROM: Jonathan R. Brown, WPCP Manager
SUBJECT: Dubuque Regional Airport Inspection Report
DATE: June 17, 2010
INTRODUCTION
BACKGROUND
DISCUSSION
Dubuque
AY- Amerlca City
y
2007
The purpose of this memo is to provide information concerning the recent inspection by
IDNR of the Dubuque Regional Airport Wastewater Lagoon and to outline tasks that will
be completed to fulfill the requirements and recommendations given as a result of the
inspection report.
On May 11, 2010 a routine inspection of the Dubuque Regional Airport Wastewater
Treatment Lagoon was conducted by staff of the Iowa Department of Natural Resources
and an inspection report was sent June 11, 2010. The Airport Lagoon is jointly operated
by staff of the Airport and Water Pollution Control Department. The WPCP staff is
responsible for monthly monitoring, reporting to IDNR, and major maintenance of
mechanical equipment. Airport staff has taken responsibility for daily flow monitoring,
weekly settleable solids testing, and general maintenance.
The summary of requirements is listed below along with what action will be taken to
fulfill these requirements;
1. Settleable solids testing must be conducted weekly and reported on the monthly
operating report — This requirement fell through the cracks the last few months and will
be reinitiated by WPCP and Airport staff.
2. Fecal coliform samples must be reported in units of 10 *3/100 ml. — This was caused
by a misreading of the reporting form. All of the other reporting we do for fecal coliform
is reported as colonies per 100 ml rather than in units of 1000 colonies per 100 ml. This
error has been corrected with the report for the month of May.
3. The owner must initiate a program to identify and eliminate sources of I /1— WPCP
staff and Airport staff will meet within two weeks to develop a plan to begin this study.
4. Algaecide must not be used — As indicated in the body of the report we have not used
algaecide at this facility since 2004.
5. All valves and control equipment should be repaired and maintained in proper
working order at all times and regularly exercised to keep valves in good working order.
— As indicated in the report the mechanical equipment at the facility was in good
working order. The suggestion given is what is currently being accomplished on a
regular basis. We will review our maintenance record keeping making sure we are
receiving credit for the work that is being done,
6. Within 30 days of the receipt of this report lift station pumps must be calibrated — The
project will be completed prior to July 2, 2010 and a schedule adopted for yearly
calibration.
7. If the operator determines that sludge must be removed from the lagoon, any sludge
removed must be handled in accordance with 567 IAC Chapter 67. — We will complete
the measurement of the sludge levels in the lagoons by August 1, 2010 and if needed
removal will be done in compliance with the code.
The recommendations given in the report will be incorporated in the routine operation of
the facility. Airport and WPCP staff will coordinate discussion with IDNR staff to try and
determine what the bacterial requirements will be for future NPDES permits.
SUMMARY
In general the operation of the Dubuque Regional Airport Lagoon with cooperation
between Airport and WPCP staff has worked quite well and the plant is well maintained.
WPCP and Airport staff will work together over the next few weeks to properly respond
to the issues raised in the inspection report.
ACTION REQUESTED
The purpose of this memo is to report actions that will be taken to respond to the
inspection report.
Attachments:
cc: Todd Dalsing Assistant Manager Dubuque Regional Airport
Fields of Opportunities
CHESTER J. CULVER, GOVERNOR
PATTY JUDGE, LT. GOVERNOR
June 11,2010
City of Dubuque
City Hall
13th & Central
Dubuque, IA 52001
ATTN: Honorable Mayor & City Council
RE: Dubuque Regional Airport Wastewater Treatment Facility Inspection
NPDES Permit #: 3126002
Dear Honorable Mayor & City Council:
Enclosed is the report of the recent inspection of the above facility conducted by Sue Miller of
the Field Office #1 staff.
We believe you will find the report self - explanatory. All requirements listed in this report must
be completed as identified in this report.
If you have any questions about the inspection or report, please contact Sue Miller or myself at
this office.
Sincerely,
Mike Wade
Environmental Specialist
FIELD OFFICE #1 / 909 West Main Suite 4 / Manchester, IA 52057
563 - 927 -2640 / FAX 563 - 927 -2075 / www.iowadnr.com
STATE OF IOWA
DEPARTMENT OF NATURAL RESOURCES
RICHARD A. LEOPOLD, DIRECTOR
cc: DNR Records Center, (w /encl.)
Jonathon Brown, Dubuque Water Pollution Control Facility, 795 Julien Dubuque Dr.,
Dubuque, IA 52003 (w /encl.)
File: Dubuque Regional Airport WW
eFile: 31 WW Dubuque Regional Airport 051110 ins sjm
c t3
• m
• 0
• r
o 0
no
NPDES PERMIT COMPLIANCE SUMMARY
SELF-
MONITORING
Operation Reports Submitted:
PLANT GRADE:
WW1 L
Required Data
on Reports:
❑ Unsat.*
Testing Adequacy:
❑ Sat. ❑ Marg.* ❑ Unsat.*
►5 Sat. ❑ Marg.* ❑ Unsat.*
❑ Sat. ►4 Marg.*
EFFLUENT
LIMITATIONS
SELF - MONITORING RESULTS:
❑ Unsatisfactory*
❑ Satisfactory ►1 Marginal*
SAMPLES THIS
INSPECTION
TYPE:
None
LAB DATA ATTACHED?
❑Yes ❑ No
RESULTS:
❑ Unsatisfactory*
❑ Satisfactory ►.1 Marginal*
VISUAL APPEARANCE OF EFFLUENT:
Tinted blue from algaecide
VISUAL APPEARANCE OF RECEIVING STREAM:
Effluent appears to soak into the ground.
COMPLIANCE
SCHEDULE
COMPLIANCE w /SCHEDULE:
❑ Sat. ❑ Marg.* ❑ Unsat.*
NEXT ITEM DUE:
DATE DUE:
FACILITY INFORMATION
FACILITY
NAME:
Dubuque Regional Airport Wastewater Treatment
Lagoon
PLANT GRADE:
WW1 L
ADDRESS:
RR #3
CITY:
Dubuque
STATE:
Iowa
ZIP:
52001
PHONE:
563- 589 -4176
PE (BOD):
NA
RESPONSIBLE AUTHORITY /OWNER:
City of Dubuque
RESPONSIBLE
OPERATOR
NAME:
Jonathon Brown
GRADE:
IV
CERTIFICATION NUMBER:
DESIGN
CAPACITY
AVERAGE MGD:
0.006
MAXIMUM MGD:
0.006
POUNDS BOD /DAY:
5
PE (BOD):
30
NOW
TREATING
AVERAGE MGD:
0.005
MAXIMUM MGD:
0.009
POUNDS CBOD /DAY:
NA
PE (BOD):
NA
PERIOD REVIEWED:
01/01/01 — 03/31/04
POPULATION SERVED:
Transient pop.
RECEIVING
STREAM
Unnamed Tributary to Granger Creek B(LR)
AUTHENTICATION
INSPECTOR:
NAME: ue Miller, Environmental Specialist
�, 1 (1
DATE:
C; / // / /Gs
REVIEWER:
" NAME: Mike Wade,
1( \L1
vironmental Specialist
-
DATE:
6,10-it
INSPECTION INFORMATION
INSPECTION
DATE THIS INSPECTION:
05/11/2010
DATE LAST INSPECTION:
04/21/04
PURPOSE:
Routine Compliance Inspection
PERSONS
INTERVIEWED
NAME:
Jonathon Brown (via telephone)
Todd Dalsing
TITLE:
Wastewater Operator
Acting Airport Manager
NPDES Permit #: 3126002
IOWA DEPARTMENT OF NATURAL RESOURCES
WASTEWATER TREATMENT FACILITY INSPECTION
Page 1 of 4
GENERAL
DESCRIPTION:
Three cell, completely mixed aerated lagoon
* Ex in Comments and Recommendations Section
Parameter
Sample Results
Permit
Maximum
CBOD
18 mg /L
40 mg /L
BOD
22 mg /L
NA
Total suspended Solids (TSS)
130 mg /L
120 mg /L
pH
9.1 s.u.
6 -9 s.u.
Ammonia Nitrogen (NH -N)
1.6 mg /L
NA
e. coli
28000 MPN /100 ml
NA
Parameter
Sample Results
CBOD
58 mg /L
BOD
70 mg /L
Total suspended Solids (TSS)
95 mg /L
pH
8.4 s.u.
Ammonia Nitrogen (NH -N)
38 mg /L
Dubuque Regional Airport Wastewater Treatment Lagoon Inspection Inspection Date: 05/11/10
NPDES Permit #: 3126002 Page 2
NPDES PERMIT COMPLIANCE:
The monthly operation reports (MORs) were reviewed for the reporting period from May 1, 2007 through April
30, 2010.
Self- Monitoring — The operation reports were submitted regularly and on time; and it appears that the
wastewater testing parameters of the NPDES permit are being consistently entered at the required
frequencies on the monthly reports, except that settleable solids results are not being reported as required to
be performed on the effluent weekly by the facility permit. In addition, fecal coliform samples must be reported
in units of 10 ml.
Design Capacity /Effluent Limitations — During the above mentioned reporting period the following
observations were made:
• The design influent flow rates are 0.006 MGD AWW and 0.006 MGD MWW. The AWW was exceeded
during March 2010 and the MWW was exceeded eight (8) months during the reporting period.
• The 30 -day and 7 -day average CBOD effluent limitations are 25 mg /L and 40 mg /L respectively. During
the above mentioned reporting period the facility the 30 -day average was exceeded in September 2009
and April 2010.
• The 30 -day and 7 -day average total suspended solids (TSS) effluent limitations are 80 mg /L and 120 mg /L
respectively. During the above mentioned reporting period the facility the 30 -day average and 7 -day
average were both exceeded in April 2010.
Samples This Inspection — A 24 -hour composite influent sample and a grab sample of the final effluent
were collected and submitted to the University Hygienic Laboratory (UHL) in Des Moines for analysis. The
below list and attached copy of the test results indicates the sample results obtained and compliance with the
effluent limitations of the current operation permit.
24 -hour composite influent sample results
Grab effluent sample results
Grab samples were also collected from both influent and effluent, which were analyzed for oil and grease.
The influent sample contained 12.6 mg /L and the effluent sample was below detection. The airport should be
aware of the activities that may be contributing oil and grease to the system and should develop strategies to
prevent entry to the collection system.
Dubuque Regional Airport Wastewater Treatment Lagoon Inspection Inspection Date: 05/11/10
NPDES Permit #: 3126002 Page 3
Total suspended solids in the effluent sample exceeded the 7 -day average permit limitation. The effluent
sample TSS concentration was also higher than the influent TSS concentration. Algae forming in the lagoon
cells is most likely responsible for this, however excess sludge buildup could also be a contributing factor.
Analysis from samples collected for this inspection indicate that this facility is not meeting the 85% removal
permit limits for CBOD5. A one day sample event is not adequate to evaluate this permit limit, but it does
indicate that there may be a concern that adequate secondary treatment may not being provided at all times.
FACILITY EVALUATION:
Collection System —
If the flow values are accurate, infiltration /inflow (1 /1) may be a contributing to the frequent maximum flow
exceedances. Large amounts of clear water could be part of the cause of hydraulic overload reducing the
efficiency of treatment units. These sources include, but are not limited to roof drains, basement sumps,
storm sewer interconnections and leaking manholes. The owner must initiate a program to identify and
eliminate sources of I /1.
Lift Station(s) —The Dubuque Regional Airport is served by one lift station located across the road from the
main terminal. The lift station appeared to be well maintained and clean.
Aeration System — The aeration system consists of two submerged diffusers in each of cells 1 and 2. Cell 3
is a quiescent cell. Mr. Dalsing reported that the diffuser plates had recently been replaced.
Lagoon Structures —
The operator said that cell 3 has a problem with excess algae and duckweed growth. To control the excess
growth; the maintenance crew had added an algaecide on a regular basis. The owner was required to stop
using the algaecide as a result of the 2004 inspection.
Aerated lagoons that have an abundance of blue -green algae present may be either organically overloaded or
have some deficiency in the aeration system. Algaecide must not be used due to possible toxicity to aquatic
life, unless effluent monitoring and limits are established by the NPDES permit. Mr. Brown reported that
algaecides are not used.
We recommend the mechanical or manual removal of floating algae mats. A layer of duckweed will also inhibit
algae growth by shading the sunlight. Manual removal of the duckweed prior to cold weather will keep the
dying duckweed from adding to the BOD of the cell.
All valves and control equipment should be repaired and maintained in proper working order at all times and
regularly exercised to keep the valves in good working order.
Flow Measurement —
Time clocks on the lift station pumps are used for calculating influent flow. This method of flow needs to be
recalibrated at least every twelve months to take into account for impeller wear. According to Mr. Brown, the
lift station pumps have not been calibrated since 2004. These calibrations must be kept with other
maintenance records. As stated in the Collection System Section of this report, the reported influent flow
readings for this system indicate that the system is hydraulically overloaded. Within 30 days of the receipt of
this report, the operator must calibrate the lift station pumps to ensure that accurate flow data is provided to
the department.
The facility permit also requires instantaneous effluent flows. The outfall is not equipped with a flow
measurement device.
Dubuque Regional Airport Wastewater Treatment Lagoon Inspection Inspection Date: 05/11/10
NPDES Permit #: 3126002 Page 4
General Staffing —
The operator of this facility is Jonathon Brown, who is also the operator of the City of Dubuque Water Pollution
Control Facility. Airport personnel assist Mr. Brown with daily operations.
Miscellaneous — A Use Assessment and Attainability Analysis was completed for the drainage ditch, the
unnamed tributary and Granger Creek. No recreational designation was the recommended designation for the
drainage ditch and the upper and middle reaches of the unnamed tributary (above the Highway 61 crossing.)
Secondary Contact (2) recreational use was the recommended designation for the lower reach of the
unnamed tributary and for Granger Creek. This recommendation, if approved, could result in e. coli limits in
future NPDES permits for the Dubuque Regional Airport's wastewater lagoons. The Airport can request a
"best guess" waste load allocation to determine potential effluent limitations based on the recommended
designations. The e. coli results from the sample collected for this inspection indicate that the lagoons may
have difficulty meeting bacteria limitations without disinfection.
Sludge— The operator should investigate the thickness of the sludge layer in the lagoon cells. Too much
sludge can limit the amount of available storage and could contribute to effluent totals suspended solids. If the
operator determines that sludge must be removed from the lagoon, any sludge removed must be handled in
accordance with 567 IAC Chapter 67.
SUMMARY OF REQUIREMENTS
1. Settleable solids tests must be conducted weekly and reported on the monthly operating report.
2. Fecal coliform samples must be reported in units of 10 /100 ml.
3. The owner must initiate a program to identify and eliminate sources of 1 /1.
4. Algaecide must not be used due to possible toxicity to aquatic life, unless effluent monitoring and limits are
established by the NPDES permit.
5. All valves and control equipment should be repaired and maintained in proper working order at all times
and regularly exercised to keep the valves in good working order.
6. Within 30 days of the receipt of this report, the operator must calibrate the lift station pumps to ensure that
accurate flow data is provided to the department.
7. If the operator determines that sludge must be removed from the lagoon, any sludge removed must be
handled in accordance with 567 IAC Chapter 67.
SUMMARY OF RECOMMENDATIONS
1. We recommend the mechanical or manual removal of floating algae mats. A layer of duckweed will also
inhibit algae growth by shading the sunlight. Manual removal of the duckweed prior to cold weather will
keep the dying duckweed from adding to the BOD of the cell.
2. The Airport can request a "best guess" waste load allocation to determine potential effluent limitations
based on the recommended designations. The e. coli results from the sample collected for this inspection
indicate that the lagoons may have difficulty meeting bacteria limitations without disinfection.
3. The operator should investigate the thickness of the sludge layer in the lagoon cells. Too much sludge
can limit the amount of available storage and could contribute to effluent totals suspended solids.
1
THE
UNIVERSITY
OF IOWA
May 26, 2010
Sue Miller
EPD 1
909 West Main
Suite 4
Manchester, IA 52057
Sue,
Enclosed are the "Results of Analyses" for the compliance sampling inspection at the Dubuque
Regional airport sampled on May 11 -12, 2010. If you have any questions regarding the results, or
any other questions, please contact Mike Schueller or myself.
Sincerely,
-fie .Q
Todd Hubbard
HYGIENIC LABORATORY
Iowa's Environmental and
Public Health Laboratory
102 Oakdale Campus, H101 OH
Iowa City, Iowa 52242 -5002
319 - 335 -4500 Fax 319 - 335 -4555
www.uhl.uiowa.edu
Analyte
Concentration
gpd
Quantitation Limit
gpd
Flow Rate
4541
0.001
HYGIENIC
LABORATORY
The University
of Iow•
Comments
Date Analyzed: 05 -13 -2010
Method: SM 5210B
Date Analyzed: 05 -12 -2010
Method: ISCO,1989
Michael D. Wichman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
MASON CITY IA 50401 -5630
Hygienic Laboratory
The University of Iowa
Date of report: 05 -26 -2010
I IIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIII
SUE MILLER
IDNR -FO 2
2300 15TH STREET SW
Upon arrival, sample met container and preservation requirements for
the analysis requested. Please review carefully your sample results
for additional analyte comments or method exceptions.
Influent sampled from lift station. 5/11- 12/10. 1025 -1005 Samples
collected every 20 minutes, all samples collected.
Date Analyzed: 05 -18 -2010 Analyzed at: Ankeny
Method: EPA MCD -51
Analyte
Total Biochemical Oxygen Demand (5 day)
Carbonaceous BOD (5 day)
Comments
Concentration
mg /L
70
58
Quantitation Limit
mg /L
2
Reported result was based on a dilution that did not meet SM
criteria for at least 2.0 mg/L DO depletion. The result does not
meet all criteria for NPDES data validity and must be
qualified as an estimate if reported to IDNR for discharge
permit purposes. Based on the measured DO depletion for the
dilution containing the greatest volume of sample the
calculated BOD(C) is 58 mg/L.
2
102 Oakdale Campus, #101 OH
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Results of Analyses
Sampling Comments
Biochemical Oxygen Demand
Analyzed at: Iowa City
Flow Rate for Compliance Activities
Analyzed at: Ankeny
Page 1 - Continued on next page
Sample Number
Date Received
Project
Date Collected
Collection Site
Collection Town
Description
Reference
Collector
Phone
Purchase Order
htip://www.uhLuiowa.edu
2010015475
05 -12 -2010
03WQCSI
05 -12 -2010 10:05
airport infl 24hr composite
Dubuque
waste water
HUBBARD UHL0004
u __,
? a' C J E
MAY 27 2010
DNR F.0.1
Analyst: CTH
Verified: KS
Analyst: RAD
Verified: DM
Analyst: CTH
Verified: KS
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642
Analyte
Concentration
mg /L
Quantitation Limit
mg /L
Ammonia Nitrogen as N
38
0.05
HYGIENIC
LABORATORY
The University
of Iowa
Analyte
Total Suspended Solids
Comments
Concentration
mg /L
95
Quantitati
mg /L
1
Dried at 103 degrees C
Date Analyzed: 05 -14 -2010
Method: USGS I- 3765 -85
Date Analyzed: 05 -19 -2010
Method: LAC10- 107 -06 -1J
Michael D. Wickman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
mg /L - Milligrams per Liter
gpd - Gallons per Day
Hygienic Laboratory
The University of Iowa
102 Oakdale Campus, #101 OH
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Total Suspended Solids
Analyzed at: Ankeny
Ammonia as N
Analyzed at: Ankeny
Iowa Environmental Laboratory IDs are: Ankeny #397, Iowa City #027, Lakeside #393.
If you have any questions please call Client Services at 800 /421 -IOWA (4692) or 319/335 -4500. Thank you.
Page 2 - End of Report
http://www.uhl.utowa.edu
Page 2
Sample Number 2010015475
Analyst: MP
Verified: LF
on Limit
Analyst: JE
Verified: LF
Description of units used within this report
No Units - No Units
Quant Limit - Lowest concentration reliably measured
The results of this report relate only to the items analyzed. This report shall not be reproduced except in full without the written approval
of the laboratory.
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642
Analyte
Concentration
mg /L
Quantitation Limit
mg /L
Hexane Extractable Material (HEM)
<5.00
5.00
HYGIENIC
LABORATORY
The University
of Iowa
6
1.1.1.IIfffuIfuIII IIIIIIIIII....11IIIIffuIIIII
SUE MILLER
IDNR -FO 2
2300 15TH STREET SW
MASON CITY IA 50401 -5630
Comments
Date of report: 05 -26 -2010
Sample Number
Date Received
Project
Date Collected
Collection Site
Collection Town
Description
Reference
Collector
Phone
Purchase Order
2010015476
05 -12 -2010
03WQCSI
05 -12 -2010 09:
airport effluent
Dubuque
waste water
HUBBARD UH
Upon arrival, sample met container and preservation requirements for
the analysis requested. Please review carefully your sample results
for additional analyte comments or method exceptions.
Sampling Comments
Grab sample collected at last discharge point from polishing pond. 5/12/10.
0915.
Date Analyzed: 05 -18 -2010
Method: EPA MCD -51
Date Analyzed: 05 -13 -2010
Method: SM 5210B
Date Analyzed: 05 -24 -2010
Method: EPA 1664
Michael D. Wichman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
Hygienic Laboratory
The University of Iowa
102 Oakdale Campus, #101 011
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Results of Analyses
Analyzed at: Ankeny
Biochemical Oxygen Demand
Analyzed at: Iowa City
Oil & Grease (Reported as HE
Analyzed at: Iowa City
Page 1 - Continued on next page
http: //www.uhl. uiowa. edu
Analyst: KB
Verified: GJ
15
frab
L0004
Analyst: CTH
Verified: KS
Analyte
Total Biochemical Oxygen Demand (5 day)
Carbonaceous BOD (5 d a )
Comments
Concentration
mg /L
22
18
Results should be qualified for Total BOD only (CBOD results do
not require a qualifier): Reported result was based on a dilution
criteria for at least 1.0 mg/L remaining DO. The Result does not
meet all criteria for NPDES data validity and must be qualified a
an estimate if reported to IDNR for discharge permit purposes.
Depletion of the dilution containing the least amount of sample
was such that no valid estimate of BOD is possible. The true
result is possibly much greater than the reported value.
Quantitation Limit
mg /L
2
2
Analyst: RAD
Verified: DM
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642
Analyte
Concentration
mg /L
Quantitation Limit
mg /L
Ammonia Nitrogen as N
1.6
0.05
Analyte
Concentration
Degrees C
Quantitation Limit
Degrees C
Field Temperature
10.7
0.0
Analyte
Concentration
pH Units
Quantitation Limit
pH Units
Field pH
9.1
10
Analyte
Concentration
MPN /100mL
Quantitation Limit
MPN/ 100mL
E.coli
28000
10
HYGIENIC
LABORATORY
The Uei•errity
of Iowa
The University of Iowa
Hygienic Laboratory
Date Analyzed: 05 -12 -2010
Method: SM 18 9223
Date Analyzed: 05 -12 -2010
Method: SM 4500 H
E.coli MPN by Method 9223B
Analyzed at: Iowa City
Field nH
Analyzed at Ankeny
Field Temperature
Page 2
Sample Number 2010015476
Analyst: CL /M
Verified: KO
Analyst: CTH
Verified: KS
Date Analyzed: 05 -12 -2010
Method: SM 2550
Analyte
Total Suspended Solids
Comments
Concentration
mg /L
130
Quantitation Limit
mg /L
Dried at 103 degrees C
1
Date Analyzed: 05 -14 -2010
Method: USGS I- 3765 -85
Date Analyzed: 05 -19 -2010
Method: LAC10- 107 -06 -1J
Michael D. Wichman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
102 Oakdale Campus, #101 OH
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Analyzed at: Ankeny
Total Suspended Solids
Analyzed at: Ankeny
Ammonia as N
Analyzed at: Ankeny
Page 2 - Continued on next page
http: / /www. uhl. uiowa. edu
Analyst: CTH
Verified: KS
Analyst: MP
Verified: LF
Analyst: JE
Verified: LF
Description of units used within this report
mg /L - Milligrams per Liter pH Units - pH Units
Degrees C - Degrees Celsius No Units - No Units
MPN /100mL - Most Probable Number per 100 Milliliters Quant Limit - Lowest concentration reliably measured
The results of this report relate only to the items analyzed. This report shall not be reproduced except in full without the written approval
of the laboratory.
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642
HYGIENIC
LABORATORY
The University
of Ioas
Hygienic Laboratory
The University of Iowa
Iowa Environmental Laboratory IDs are: Ankeny #397, Iowa City #027, Lakeside #393.
If you have any questions please call Client Services at 800/421 -IOWA (4692) or 319/335 -4500. Thank you.
Michael D. Wichman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
102 Oakdale Campus, #101 OH
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Page 3 - End of Report
http://www.uhLuiowa.edu
Page 3
Sample Number 2010015476
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642
Analyte
Concentration
Degrees C
Quantitation Limit
Degrees C
Field Temperature
11.8
0.0
Analyte
Concentration
pH Units
Quantitation Limit
pH Units
Field pH
8.4
5.00
Analyte
Concentration
mg/L
Quantitation Limit
mg /L
Hexane Extractable Material (HEM)
12.6
5.00
HYGIENIC
LABORATORY
The University
of Iowa
Comments
Date of report: 05 -26 -2010
I,I,I,II,t „1„111 IIIIIII,IIJIIIIIIIIuIIIIII�I
SUE MILLER
IDNR -FO 2
2300 15TH STREET SW
MASON CITY IA 50401 -5630
Sample Number
Date Received
Project
Date Collected
Collection Site
Collection Town
Description
Reference
Collector
Phone
Purchase Order
2010015477
05 -12 -2010
03WQCSI
05 -12 -2010 09:
airport influent
Dubuque
waste water
HUBBARD UH
Upon arrival, sample met container and preservation requirements for
the analysis requested. Please review carefully your sample results
for additional analyte comments or method exceptions.
ate Analyzed: 05 -24 -2010
Method: EPA 1664
ate Analyzed: 05 -12 -201
Method: SM 4500 H
ate anatyzea: uo -11-
Method: SM 2550
mg /L - Milligrams per Liter
Degrees C - Degrees Celsius
Michael D. Wichman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
Hygienic Laboratory
The University of Iowa
102 Oakdale Campus, #101 OH
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Results of Analyses
Oil & Grease (Reported as HE
Analyzed at: Iowa City
Field nH
Analyzed at Ankeny
Field Tem p ratur
Analyzed at: Ankeny
Iowa Environmental Laboratory IDs are Ankeny #397, Iowa City #027, Lakeside #393.
Page 1 - Continued on next page
http:/lwww.uhl.uiowa.edu
Analyst: KB
Verified: GJ
25
grab
Analyst: CTH
Verified: KS
Analyst: CTH
Verified: KS
L0004
Description of units used within this report
pH Units - pH Units
Quant Limit - Lowest concentration reliably measured
The results of this report relate only to the items analyzed. This report shall not be reproduced except in full without the written approval
of the laboratory.
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642
HYGIENIC
LABORATORY
The University
of Ins.
Hygienic Laboratory
The University of Iowa
If you have any questions please call Client Services at 800/421 -IOWA (4692) or 319/335 -4500. Thank you.
Michael D. Wichman, Ph.D.
Michael A. Pentella, Ph.D.
Associate Directors
102 Oakdale Campus, #101 OH
Iowa City, Iowa 52242 -5002
319/335 -4500 Fax: 319/335 -4555
Page 2 - End of Report
http://www.uhLuiowa.edu
Page 2
Sample Number 2010015477
Iowa Laboratories Complex
2220 S. Ankeny Blvd, Ankeny, Iowa 50023
515/725 -1600 Fax: 515/725 -1642