HomeMy WebLinkAboutDTS-08-091 - Annual Audit Report 2007 - Master Stormwater Management Policy'REPORT
Report To: Chair Christina Weylie and Members
Development and Technical Services Committee
Date of Meeting: May 26, 2008
Submitted By: K. Grant Murphy, Director of Engineering
Prepared By: Diana Lupsa, Engineering Technologist
Ward(s) Involved: City Wide
Date of Report: May 16, 2008
Report No.: DTS-08-091
Subject: ANNUAL AUDIT REPORT 2007 - MASTER STORMWATER
MANAGEMENT POLICY
RECOMMENDATION:
That Council receive the attached Executive Summary for the 2007 Annual Audit Report,
prepared by Totten Sims and Hubicki and further;
That Council endorse the recommendations outlined in the Executive Summary
(attached);
BACKGROUND:
In 1999, the City of Kitchener commenced a study to prepare a Master Stormwater
Management (SWM) Policy, which would assess existing approaches to stormwater
management, investigate options for modifying the current approach and create aCity-wide
policy for SWM. The final report of the Master SWM Policy was approved at Council on
December 10, 2001 and subsequently filed as a Schedule 'B' Environmental Assessment under
the MEA Class EA.
As part of the Master SWM Policy, an annual audit report is to be completed each year to
summarize the practices carried out to date in each of the categories included in the Citywide
plan, namely:
• The development or site plan applications for the year and associated SWM fees
collected.
• The SWM facilities that have been constructed (or are in the process of being
constructed) over the last year. This includes new ponds, retrofitting of existing SWM
facilities and the installation of oil/grit separator units (OGS).
• Stream rehabilitation works that have been carried out or are underway.
1
REPORT:
The purpose of the annual audit report is to indicate whether or not the SWM measures provide
the necessary water quantity control and water quality treatment of stormwater resulting from
infill/redevelopment sites. The audit is completed in conjunction with a review of the capital
budget and an assessment of the following year's budget. The review lists the redevelopment
and infill drainage area for which SWM Redevelopment~lnfill charge Cash-in-Lieu} has been
collected, the drainage area serviced by the facilities built, and the drainage area serviced by
creek rehabilitation works.
The SWM Redevelopment/lnfill charges (Cash-in-Lieu) applies to all redevelopment and infill
sites that cannot connect to existing quality control facilities and it is to be used toward the
construction/retrofit of SWM facilities. In May 2007 the City's Finance committee recommended
a 6% fee increase to coincide with the rate of inflation. This recommendation was ratified by
Council on November 13, 2007. As a result, the cash-in-lieu fee has been increased to $15,900
as of January 1, 2008.
The 2007 SWM Audit Report summarizes the works that have carried out as related to the
Citywide Plan from November 2006 to October 2007(see Table 1).
Table 1. Evaluation of SWM and Stream Rehabilitation (2002-2007)
Year
Cash-~n-L~eu
Draina a Area ha
g ~ ~ Drama a Area
g
Serviced by SWM
Works ha
~ ~ Drainage Area
Serviced
b Rehabilitation
y
ha
2002 - 2003 10.99 41.1 157
2003 12.81 4.95 0
2004 19.84 0 0
2005 8.01 0 100
2006 9.89 0 0
2007 22.55 0 270
Tota12002-2006 84.08 ha 46.05 ha 527.00 ha
At the end of year 2007 the total drainage area serviced by SWM works was 46.05ha compared
with 84.08ha drainage area for which City of Kitchener collected Cash-in-Lieu. During the year
2002 and 2007 there have been a number of stream rehabilitation works providing water quality
enhancements for 527 ha.
Details regarding the SWM works and creek rehabilitation that have been completed between
2002 - 2007 are provided in Table 2 and Table 3.
2
Table 2. Summary of SWM Retrofits/OGS Installations Completed (2002-2007)
Facility
Year Description
of
works Drainage Area
Serviced By SWM
Works (ha)
Pond -Bleams Road at Thistledown Drive 2002 Quality Retrofit 41.1
OGS -Park Street at Victoria Avenue 2003 OGS 4.95
Total 2002-2007 46.05
Table 3. Summary of Creek Rehabilitation Works Completed (2002-2007)
Description Drainage Area
Facility Year of Serviced By
works Rehabilitation (ha)
Sandrock Greenway (McGarry Drive to 2002- Creek Rehabilitation 157
Queen Boulevard 2003
Henry Sturm Greenway (Fischer Hallman 2005 Creek Rehabilitation 100
to the Headwaters
Voisin Creek (from the Expressway to the 2007 Creek Rehabilitation 270
confluence
Total 2002-2007 527 ha
At the end of 2007, the following projects have been identified as priorities and, subject to
available funds, are proposed to be completed:
Creek Rehabilitation
- Completion of Voisin Greenway outfalls rehabilitation -the work will be
included in the 2008 winter works program.
- Class Environmental Assessment and Preliminary Design for Victoria Park
Lake Improvements - it was initiated in 2008 to address sediment
accumulation and water quality issues which currently exist. The project scope
includes the generation and evaluation of various alternatives to improve the
overall condition and function of Victoria Park Lake and its upstream tributaries.
- Implementation of the selected alternative of the Environmental Assessment of
Ward's and Brigadoon Pond -the work was included in the 2008, 2009 and
2010 capital budget
Pond Retrofit
- Krizsanderson SWM Pond - Due to recent development and re-development in
the area of Deer Ridge Plaza and Sportsworld, the City will retrofit in 2008 the
SWM facility to accommodate the increase in stormwater flows and provide
quality control for the receiving watercourses downstream.
3
- Pond 2 in the Huron Business Park -the design brief was completed in 2003
and the construction phase was incorporated into the 2010 capital budget
• Oil Grit Separator (OGS)
- OGS units will be installed as part of the Capital Works for various projects.
Over the last year, representatives of the City, GRCA, the Region and our Consultants have met
several times to review the progress and analysis being undertaken in support of the principles
of the Master Stormwater Management Plan.
A number of recommendations for additional work were identified in the 2007 audit and
proposed to be implemented throughout the course of 2008. These recommendations are
identified in the Executive Summary -Section 0.11. Notable among the recommendations are:
• That a comprehensive review of the SWM Policy, implementation process and report on
progress reaching objectives set out in the SWM Policy should be conducted. Over the last
six years planning decisions and development may have changed the potential location for
infill and redevelopment. The infill and redevelopment area boundary should be evaluated
and adjusted if necessary. Through the review process, potential revisions or updates may
be considered so that the SWM Policy will reflect current policies, legislation, guidelines and
best practices.
• That for each proposed work (pond retrofit, new pond, OGS or creek rehabilitation) adata
sheet should be provided. The data sheet should include information needed to evaluate
the benefits and costs for each proposed work, and it will be used for generating a ten year
SWM capital forecast.
• That during the stream walks information regarding the stream morphology, description of
aquatic environmentlcommunity and identification of barriers to fish movement to be
collected. The creek rehabilitation priorities should be updated following stream walks.
At the end of 2006, there have been five years worth of water quality data collected. The
monitoring results will be summarized in a user friendly five year Report Card and it will be
presented to Council at an upcoming meeting.
FINANCIAL IMPLICATIONS:
The SWM Redevelopment/Infill fee (Cash-in-Lieu) is being deposited into account 315905 -
WTBI-SWM CERTIFICATION-DEPOSIT. The balance at November 01, 2007 was $970,940.
For the period November 2004 to the end of October 2007, funding received from the collection
of the SWM Fee has been used for the following projects:
Thistledown Pond (2005) - $115,000.00
Voisin Greenway Rehabilitation (2005) - $50,000.00
The available funding will be used for completion of new ponds, retrofit ponds, OGS and stream
rehabilitation works as identified on the priority list.
4
COMMUNICATIONS:
Copies of the final documents have been forwarded to members of the Steering Committee
(City of Kitchener, GRCA and the Region of Waterloo).
CONCLUSION:
2007 represented the sixth year that the City's Master Stormwater Management Policy has
been in effect. Staff will continue to work with the Consultants and the Steering Committee to
prepare the 2008 Annual Audit and the five year Report Card.
K. Grant Murphy, P. Eng.
Director, Engineering Services
Diana Lupsa
Engineering Technologist
5
The Corporation of the City of Kitchener
CITY-WIDE STORMWATER MANAGEMENT
PLAN
ANNUAL AUDIT REPORT
(YEAR 2007)
FINAL REPORT
May 2008
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007) ii
CITY OF KITCHENER
CITYWIDE SwOR~1~IWATER MANAGEMENT PLAN
ANNUAL AUDIT REPORT (YEAR 2007)
0.0 EXECi1wIVE SUMMARY
0.1 Introduction
As part of the recommendations of the Stormwater Management (SWM) Report, an annual audit report is
prepared to indicate that the SWM facilities being provided meet the requirements for volume of
Stormwater to service the current infill/redevelopment sites. The review is completed in conjunction with
a review of the capital budget and an assessment of the following year's budget. The review lists the
drainage areas serviced by the facilities built and the corresponding service areas associated with the
redevelopment and infill locations. The prioritylimplementation order of SWM related works is reviewed
at this time and modified as appropriate based on the monitoring results, location of redevelopmentlinfill
and the location of SWM measures implemented.
The purpose of the annual audit report is to summarize works and practices to date -new ponds, retrofits,
oiUgrit separators (OGS) installation and stream rehabilitation. For the purposes of this study, "retrofit"
refers to the practice of modifying an existing SV~TIVI facility to improve its performance, based on new
design objectives and criteria that were not required or necessary at the time of the original design effort.
Retrofit may include installation of new or modified components or equipment, or modification of the
original operation and maintenance procedures and schedules.
The audit is also intended to review the priority plan for SWM facilities and stream rehabilitation and
recommend any changes to the list of facilities. Proposed works are illustrated on Figures 1.2.1a and b -
Proposed SWM Plan. Each Annual Audit Report summarizes works completed from November to
October each year.
As part of Annual Audit Report, three categories of works are summarized:
• SWM retrofits, new ponds and oil/grit separators funded through SWM charges;
• Stream restorations; and
• New SWM facilities constructed for new development.
The existing and new works completed during the period 1999 - 2007 are illustrated on Figure 2.2.2 -
Existing and New Works.
0.2 Balance of Development against SWM Retrofit Work and/or Centralized OiUGrlt Separators
Completed in 2007
• $345,520.00 in SWM fee contributions have been collected in 2007 (as of October 31, 2007) from 29
development locations, with a combined site area of 22.55 ha.
0.3 Stream Restoration
• Environmental Assessment for Voisin Creek was completed and rehabilitation work for the creek
between the confluence with Borden Greenway near Stirling Avenue and the Conestoga Expressway
($150,000) were commenced. The completed works will provide benefit to a total drainage area of
270 ha.
• Outfalls on Voisin Creek were scheduled for rehabilitation as part of the Winter Works program and
are scheduled to be completed
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007)
iii
0.4 New SWM Facilities
No new SWM Facilities were completed by the City and no work was initiated by the City on new SWM
facilities with quality control in 2007. Table 2.2.3 outlines ponds approved and accepted by the City in
2007.
Table 2.2.3 SWM Ponds Approved and Accepted by Kitchener
Project Name Date Location(s) Watershed
Hidden Valley (30T- October 10 2006 River Birch Court Middle Grant
04201) '
Topper Woods Stage November 9 2006 Moss Grove & Monarch Doon South Creek
2 (30T-04203) Woods Drive
Westmount June 13 2007 Hlghbrook Street, Wisteria U er Schneider Creek
pp
Meadows (58M-132) Court & David Bergey
Laurentian Forest
Stage 2 (58M-77) June 13 2007 Watercress Court U er Schneider Creek
pp
0.5 Water Quality and Biological Results
Water Quality
Based on the water quality results for 2007, Table 3.3.1 summarizes the results by chemical parameter.
Summaries of previous years results are attached In Appendix B 1.
Table 3.3.1 h;itchener Water Qualit Monitorin Results -2007 Summar
Parameter 2007 Summary
Total The dry sample results have increased significantly from 2006, with a maximum
Suspended value of 64.4 mg/L, and generally Increased for the wet samples as well. No
Solids (TSS) trend can be determined as of yet based on the yearly results.
Total Values decreased from 2006 values, however, all of the wet weather samples
Phosphorus were above the 0.03 mgl L objective. The average concentrations for all of the
stations were again above the Provincial objective.
Nitrate Guideline exceeded for Henry Sturm, Strasburg Middle, and Kolb. Generally,
dry concentrations are greater than wet and the results are greater than the
previous year.
Total kjeldahl All dry sample results have gone down from the previous year. The Voisin
nitrogen (TKN) Greenway (VS4) station is substantially higher than the other stations in both the
wet and dry sample results having an average value of 22.82 mg/L.
Metals All of the lead values have gone up from the previous year, in both wet and dry
samples, but remain below the guideline values. Generally, the copper values
have decreased from 2006 except the Henry Sturm station (HS 1), for the dry
samples. However, most of the stations are still above the guideline. Zinc values
have generally decreased from the previous year and most stations are below the
zinc PWQO guideline. Wet weather does Influence the zinc values resulting in
greater sample values than in dry conditions. Henry Sturm has increased in all
areas for the dry samples and generally remains the same or has decreased for the
wet samples. The new VS4 station Is significantly above the PWQO guidelines
for all metals.
E, coli E. coli is consistently above the PWQO levels for each sampling station with all
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007) iv
Table 3.3.1 h;itchener Water Quality Monitoring Results -2007 Summary
Parameter 2007 Summar
wet weather samples above the 10,000 CFUI100mL guideline. The dry sample
results of stations HS3, KS 1 and VL are similar to station IW3. The wet weather
sample results are significantly higher than the dry sample results and generally
decreasing from the previous year. Stations IW3, VL and HS 1 yielded similar
wet weather results. However, station HS3 had the highest result of 63,667
CFUI100mZ.
Ammonia Unionized ammonia was not detected for the dry samples at any of the stations
except at the Victoria Lake (VL) and Voisin Greenway (VS4) stations. The VL
station Increased from the previous year to a value of .004 mg/L. Wet weather
sample results are higher than the dry sample results by an average of .003 mg/L.
All of the wet weather results have decreased from the previous year, and all
results are below the guideline.
Chloride 2007 chloride results were very similar to 2006 and the previous years. The
Henry Sturm Greenway, and Kolb Creek station dry sample results are steadily
increasing from the previous years, and the wet sample results for Kolb Creek are
also going up. All station results are below the proposed guideline of 250 mglL.
Fecal Conform / In 2007, selected sites, that had had high levels of E. coli in past years, had
Fecal samples analyzed for Fecal Streptococcus. The ratio of Fecal Coliform/Fecal
Streptococcus Streptococcus ratio can be used to help determine the sources of contamination.
In order to have a reasonably accurate ratio the pK levels should be between the
range of 4.0 to 9.0, and the fecal streptococci values should not be less than
100/100 mL. If the ratio is less than 4.4 It indicates that the source of
contamination is non-human. The time of travel from the source of
contamination to the point of sampling and temperature of the water can affect
the ratios. References for this information can be found at the following links
and publication:
htt~://www.water-research.net , http://di~ital.library.okstate.edu ,American
Public Health Association, Standard Methods for the Examination of Water and
Waste Water,14th ed., APKA, New York, New York, 1976
The sites used Included Idlewood Creek Station 3 (IW3) due to the high E. Coli
levels in the dry weather flow sampling of an outfall upstream of this location,
Victoria Park Lake (VL) due to the generally high E. Coli levels and large
population of water fowl and Henry Sturm Greenway Station 1(KS 1) just
upstream of the Lake as a reference. Figure 3.3.14 illustrates the fecal conforms
to fecal streptococci ratio. Based on the results obtained the sources of
contamination at this point are inclusive with only Victoria Park Lake showing a
ratio greater than 4.4. Station KS 1 does not show this same ratio. The time of
travel through the lake and high temperatures in the lake maybe affecting the
ratio. However, it could also be an indication of possible human waste
contamination directly to the Lake. There are several stormwater outfalls
entering the lake, including one from a children's splashpad within the Park. It is
unlikely that any of these have cross connections to the sanitary system as they
have not been noted as dry weather flow outfalls (See section 4.2) but a closer
examination of the systems is recommended as a precaution.
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007) v
Biological
The 2003, 2004, 2006 and 2007 results indicate a preponderance of riverine (sensitivity value 2) taxa in
the numerically dominant invertebrates. For example, Cricoto us, Conchapelopia, Tan tarsus and
Simulium all have sensitivity values of 2.
At the Schneider (HS1), Strasburg (SB8), and Kolb Creek stations the invertebrate communities were
generally dominated by Isopods (Asellidae) and True Flies, see Table B3. True Flies present included
various midges and black fly larvae. Three of the seven stations sampled had black fly larvae present, see
Table B3.
Stoneflies were found at only one station in 2007, namely the South Branch of Strasburg Creek.
Numerically mayflies and caddisflies were important contributors to the invertebrate communities in
Idlewood, and Kolb Creeks.
The number of mayfly, stonefly, and caddisfly (EPT) taxa was one at VS4 and SB8. Somewhat higher,
but still low EPT values (2 to 6) were found at the Idlewood station and in Henry, Schneider Creek (HS 1)
and the Strasburg Creek South Branch. An EPT Index of 8 was registered at the Kolb Creek KD 1 station.
More normal stream flow volumes in 2003 and 2004 and 2006 resulted in flowing stream conditions
rather than the pool, wetland-like conditions present in 2002 when drought conditions occurred. March
through mid-July 2005 was also dry. Although 2007 was dry, the invertebrates were sampled in June,
when late Spring-early summer flows were still present.
A review of feeding strategies of the fish found provides an Indication of stream quality. Streams with
better water quality support a greater diversity and density of aquatic insect communities and in turn
support a greater variety of Insectivorous fish species.
The numbers of insectivorous fish species by stream in 2007 are as follows: Idlewood (2) Schneider (2),
Strasburg (2), and Kolb (6), see Table B6.
Fish that are orr.~nivores eat plant material, animal material and also detritus, they are generalists which
can survive in poorer quality water where insects are not available as a significant portion of the fish's
diet.
Although Schneider, Strasburg and Kolb Creeks are dominated by insectivorous fish species in having
between 2 and 6 insectivores present, it should be recognized that good quality streams and small revers
can have in the range of up to 12 to 15 Insectivorous fish species present.
Table B6 also indicates the pollution tolerance level for many of the fish species captured. Fifty percent
of the fish species present in the streams sampled during 2007 are recognized as highly tolerant of
environmental disturbances, including water quality and habitat degradation (OEPA 1987).
The water chemistry sampling confirms what the aquatic invertebrate and fish data are indicating, that is
that all seven of the streams sampled are receiving stormwater flows which contain typical urban runoff
concentrations of suspended solids, total phosphorus, nitrogen, copper, and chlorides. This leads to a
biological community composed of fish and Invertebrates which can tolerate these pollutant loads.
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007) vi
0.6 Works In Addition to the Annual Audit
In addition to the regular works for the Annual Audit report, the following works related to Stormwater
Management have been undertaken within the City of Kitchener, either as part of the audit program or
separate from it:
• Commencement (and completion) of a Creek Assessment Program (2004-2005). The summary of
these works that were used for creek prioritization as part of the 2005 annual audit are provided in a
separate report. The stream walks will be completed again in 2008-2010.
• Commencement of a Dry Weather Sampling Program in 2006.
• Regional Municipality of waterloo Source Water Protection Assessments and Planning
• GRCA water quality sampling on Schneider Creek as part of the PWQM network
• Continued study of the Kuron Natural Area
• Blair Creek Monitoring carried out by the GRCA
• Laurentian Wetland Odour Study
• Continuation of the Comprehensive Monitoring Program.
0.7 Future Work Priorities
The following works are anticipated to be complete in 2008:
• Idlewood Creek - $1,430,000
• Wards and Brigadoon Pond - $675,000
• Schneider Creek (1) - $2,064,000
• Victoria Park Lake EA - $193,500
• Kriszanderson Pond
As a result of the 2005 Annual Audit Report, new priority lists for potential ponds and stream restoration
were generated based on development, water quality issues and erosion (see Tables 6.4.1 to 6.4.3 in
report).
A "balanced approach" is recommended when budgeting. For example, if funds are available, new ponds,
retrofit ponds, OGS installations and stream restoration should be completed every year. A number one
priority for new ponds has equal priority to a number one priority for a retrofit, OGS installation and
stream restoration. In the event of emergency works, the priority lists should be reviewed.
The following works are recommended as the top priorities for 2008:
~ Completion of Voisin Greenway rehabilitation -the work will be included in the 2008 winter
works program.
~ Class Environmental Assessment and Preliminary Design for Victoria Park Lake Improvements -
it was initiated in 2008 to address sediment accumulation and water quality issues which
currently exist. The project scope includes the generation and evaluation of various alternatives
to improve the overall condition and function of Victoria Park Lake and its upstream attributes.
~ Implementation of selected alternatives of the Environmental Assessment of Ward's and
Brigadoon Pond -the work was included in the 2008, 2009 and 2010 capital budget
~ Kriszanderson S~-~M Pond -The city will retrofit the SWM facility in 2008 to accommodate the
increase in Stormwater flows and provide quality control for the receiving watercourses
downstream.
~ Pond 2 in the Kuron Business Park -the design brief is completed ~i construction is planned for
2010
~ OGS units will be installed as part of the Capital works for various projects. Three locations have
been identified for assessment in 2008 construction season.
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007)
vii
0.8 2008 Proposed Monitoring Program
It is the intent of the 2008 program to build upon existing data obtained in 2002-2007 as well as to gather
data from creeks that have not been sampled in some time and that have had works completed or are
expected to have works completed on them in the near future. The monitoring program was discussed
with the Monitoring Subcommittee on April 17, 2007. wable 7.1.1 describes the proposed sampling
location as well as the reason why the sampling location was chosen.
Table 7.1.1 Proposed 2008 Sampling Locations
Station Tributary Location Reason Why Location was Chosen
Core Sample Stations (4 or more years of sampling)
HS 1 Henry Sturm Victoria Park Core station - sampling will provide more
information for trend analysis
MG1 Montogomery Wilson Ave at Core station - sampling will provide more
Creek Wilson Park information for trend analysis
SC2 Schneider Homer Watson Core station - sampling will provide more
Creek and Doon South information for trend analysis
SB2 Strasburg Biehn Drive - Core station - sampling will provide more
Creek Central Branch information for trend analysis
KD 1 Kolb Creek Misty Street and Core station and to provide increased background
~tterbein information for any rehabilitation program. This will
also have a continuous temperature and depth logger.
Stations Sampled in Previous Years to be Resampled
KD2 Kolb Creek Lackner Blvd. Biological analysis was completed in 2002. This
will be a comparison to that information to identify
changes and will provide increased background
information for any rehabilitation program. A
continuous temperature logger will also be installed.
SR2 Sandrock Highland and This station was sampled for biology and chemistry
Greenway Fischer-Hallman in 2002. A rehabilitation of the upstream reach was
completed. A sewer reconstruction project is to be
completed alongside the creek. This sampling will
provide some information to assess the rehabilitation
project and to provide pre-construction information
for the sewer project.
SB 13 Strasburg Strasburg Rd This station had biological assessment in 2002.
Creek and Trillium Dr. Thisledown pond, upstream of this station, was
retrofit. This sampling will provide information to
assess the retrofit Impacts on the stream. A
continuous temperature logger will be installed.
For Temperature Only
KD4 Kolb Creek River Road and A continuous temperature logger will be installed to
Niagara provide information for future rehabilitation projects.
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007)
viii
0.9 Evaluation of SWM and Stream Rehabilitation Target
The evaluation of area serviced for SWM retrofit/OGS installation should exceed the development area
for infill and re-development on a yearly basis. It should be noted that in many cases, projects span
several years, but can only be included in a single year's assessment. Since projects often have several
phases (environmental assessment, design and construction) It is important not to double-count the
drainage area serviced. Due to the nature of these projects, a cumulative comparison provides a better
evaluation of the program. Tables 2.2.4 and 2.2.5 provide a summary of the program between 2002 and
2007. Between 2002 and 2007 the area being serviced for SWM retrofit/OGS installation was 46.05ha.
This compares to the cash-in-lieu drainage area of 84.08ha. SWM retrofit/OGS works should be
implemented to ensure cash-in-lieu payments are being matched by water quality control coverage.
Table 2.2.4 Summary of SWM Retrofits/OGS Installations Completed Under the
Program (2002-2007)
.. Descri tion of
p Drainage Area
Facility Year
works Serviced By SWM
works ha
( )
Pond - Bleams Road 2002 ualit Retrofit
Q y 41.1
at Thistledown Drive
OGS -Park Street at 2003 OGS 4.95
Victoria Avenue
Tota12002-2007 46.05
Table 2.2.5 Evaluation of SWM and Stream Rehabilitation Target (2002-2007)
Year Cash-in-
Lieu
Drainage
Area (ha)
Drainage Area Serviced
by SWM Works (ha)y
Drainage Area Serviced
by Rehabilitation (ha)y
2002 - 2003 10.99 41.1 157
2003 12.81 4.95 0
2004 19.84 0 0
2005 8.01 0 100
2006 9.89 0 0
2007 22.55 0 270
Tota12002-2007 84.08 46.05 527
~ drainage areas reported in the 2002 and 2003 annual audits have been revised to avoid
counting the drainage areas in more than one year (e.g. double counting)
~ drainage areas for 2005 modified to reflect enhancement work completed
0.10 2006 Recommendations
The following recommendations were generated as part of the 2006 Annual Audit Report.
1. The current SWM fee of $15,OOOlha should be reviewed at the end of the flue year reporting
period (2006).
Action: A memo was issued outlining construction and administration costs for new and retrofit
ponds. City Council completed a comprehensive fee review which increased the fee to $15,900/ha.
2. The temperature and water depth monitoring of Victoria Lake should continue in spring and
summer 2007 to get a full year of data.
Action: Completed as of October 31St, 2007.
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007)
ix
3. Dry weather stormwater outfall monitoring should continue with City staff trained to do the
monitoring. In addition to single samples at sites identified in stream walks, it is recommend that
detailed monitoring of the outfalls on Schneider Creek and Idlewood Creek be completed based
on violations of sewer use bylaw in 2006 monitoring.
Action: This was delayed but it is scheduled to be completed in 2008.
4. Recommendation repeated from 2005 - install a continuous temperature gauge on Kolb Creek (in
addition to those at Victoria Lake) to determine the role of groundwater discharge in maintaining
water quality in this reach.
Action: Temperature logger was Installed in 2007, see section 3.2.2.
0.11 2007 Recommendations
Policy Review
1. fiver the past 6 years planning decisions and development may have changed the potential
location for infill and redevelopment. The infill and redevelopment area boundary should be
evaluated and adjusted if necessary.
2. Subwatershed based tables and maps to illustrate proposed works should be included in future
audit reports -these should include all projects (retrofit, new ponds, CGS and stream
rehabilitation works) on one map to tie together for priority setting. The maps should include
riparian cover and erosion locations as identified in the report card analysis.
3. A datasheet should be provided for each proposed work. The datasheet will provide information
to decide and evaluate each proposed work and will be used to generate a ten year capital
forecast.
Monitoring
4. Water quality and biological monitoring for 2008 should be shifted back to core stations (with the
addition of a few previously sampled stations) to ensure enough trending data is available
5. Temperature and depth monitoring should be moved from Victoria Lake as those should be
continued as part of the Victoria Lake EA. Temperature sensors should be installed on Kolb
Creek and Strasburg Creek.
6. Investigation of additional monitoring options should be undertaken to determine need for/use of
additional funding if it becomes available.
7. Consideration be given to setting standard protocols for all monitoring efforts undertaken in the
City so data from all sources can be utilized in the report card analysis.
Prioritization
8. Kolb and Montgomery Creeks should have priorities changed for 2007 report based on
discussions at the Steering committee meeting.
9. SWM ponds priorities should be updated following SWM inspections. This should include a
review of the criteria for setting priorities to ensure that the costs and benefits of each new pond
and pond retrofit are identified. Pond inspection forms should be updated to ensure all data
required for prioritization are collected.
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City of Kitchener
Citywide Stormwater Management Plan
Annual Audit Report (Year 2007)
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10. Future stream walks should identify barriers to fish movement to add additional information to
stream prioritization.
11. Creek rehabilitation priorities should be updated following stream walks and stream walk forms
should be updated to include all information required to complete the prioritization tables.
12. Prioritization of and decisions on works to be undertaken should be set by the steering committee
prior to budgeting for the following year (i.e. by June 2008 for the 2009 budget).
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