Over 20 Years of Excellence in Environmental Science & Engineering www.kieser‐associates.com

UrbanWatershedMonitoring–OneDecadeafterManagementPlanImplementationUrbanWatershedMonitoring–

OneDecadeafterManagementPlanImplementation

Brian Boyer, P.E.Environmental Engineering ManagerEnvironmental Engineering Manager

Kieser & Associates, LLC,536 E. Michigan Ave., Suite 300

Kalamazoo, MI 49007(269) 344 7117(269) 344-7117

Project SettingProject Setting

Kalamazoo River Watershed

2,020 sq. milesLake Allegang

SCALE (MILES)

0 10 155WMU

MICHIGANPortage & Arcadia CreekArcadia Creek Subwatershed

Project SettingProject Setting

Portage & Arcadia (P/A) Creek subwatershed (36 000 )(36,000-acres)

Stormwater ConcernsStormwater Concerns

Phosphorus TMDL (2001)50% load reduction requirement

Highly urbanized P/A b h dsubwatershed

Stakeholders:Stakeholders:City of Kalamazoo

City of PortageCity of Portage

Western Michigan University

OtherOthers

20022002--03 & 201303 & 2013--14 Monitoring14 MonitoringGoals & Objectives: Compare creek monitoring data before/after 10 years of WMP implementationM h dMethods:

Automated samplingCreek mouthsC ee o sBMPs

Stream stations W t t liWet event samplingDry event sampling

Parameters:Rainfall, flowTP, TSST p D O pH C d ti it ORPTemp, D.O., pH, Conductivity, ORP

Campus SW Control AreasCampus SW Control Areas• 15 BMPs since 1998• 468.8 acres treated i l di BTRincluding BTR (blue areas)

• 59.8% of campus

BTR Park

Off‐Campus Contributing Areas

2011 WMU TMDL Compliance2011 WMU TMDL Compliance

1998 TMDL Baseline  764 lbs/yr

On‐Campus Controls only

TMDL Goal 382 lbs/yr

On‐Campus and Off‐Campus ControlsCampus Controls  (i.e., offsets)

Off‐Campus controls financially supported by WMUsuppo ted by U

20032003--2013 Kalamazoo SCMs2013 Kalamazoo SCMs

Kalamazoo

Stormwater Control Measure (SCM)Portage

Data AnalysesData Analyses

MethodsFlow and rainfall evaluationFlow duration curves and/or flow reductionCalculate loading (flow + sample results)Calculate loading (flow sample results)Quantify current EMCsCompare/contrast past and present dataCompare/contrast past and present data

Portage ISCO SamplingPortage ISCO SamplingWet Weather Event Summary

April 2013 - April 2014

Total Total R noffEvent YR Date Total Rainfall

Total Runoff Volume TP Load TSS Load TP EMC TSS EMC Peak Flows

(inches) (ft3) (lbs) (tons) (mg/L) (mg/L) (cfs)

1 Apr 11 0.66 3,859,128 31.8 5.9 0.132 48.6 244

2013

2 Apr 17-18 0.61 1,575,620 17.3 3.4 0.176 68.7 298

3 Apr 18-19 1.08 7,901,248 42.9 7.5 0.087 30.5 510

4 May 21 0.52 1,710,069 30.2 5.1 0.283 95.0 288

5 May 22-23 0.53 4,896,263 21.6 7.8 0.071 51.1 447

6 Jun 19-20 0.35 1,539,714 16.9 2.3 0.176 47.4 241

7 Jul 4 0.24 2,510,278 11.7 1.4 0.075 17.8 62

8 Aug 31 3 1 71 22 109 656 188 4 79 5 0 137 115 2 2348 Aug 31-3 1.71 22,109,656 188.4 79.5 0.137 115.2 234

9

2014

Feb 20-21 0.36 5,916,761 60.2 19.5 0.163 105.5 149

10 Mar 11-12 0.08 2,827,453 30.4 9.0 0.172 101.8 75

11 Mar 19-20 0.33 11,667,829 217.4 20.6 0.298 56.4 136

12 Apr 3-4 0.46 19,306,324 139.9 47.9 0.116 79.6 302

Slide TitleSlide Title

Slide TitleSlide Title

Portage Creek AnalysisPortage Creek Analysis

Portage Creek AnalysisPortage Creek Analysis

Portage Creek AnalysisPortage Creek Analysis

Portage Creek EMCsPortage Creek EMCs

Arcadia ISCO SamplingArcadia ISCO SamplingWet Weather Event Summary

April 2013 - April 2014

Total Total R noffEvent YR Date Total Rainfall

Total Runoff Volume TP Load TSS Load TP EMC TSS EMC Peak Flows

(inches) (ft3) (lbs) (tons) (mg/L) (mg/L) (cfs)

1 Apr 18-19 1.13 581,015 4.8 1.1 0.131 59.7 49

2013

2 May 23 0.72 381,013 2.5 1.1 0.105 89.6 55

3 Jul 28 0.28 32,919 0.2 0.03 0.110 33.6 4

4 Aug 7 1.41 459,389 9.3 1.9 0.323 134.7 78

5 Oct 4 0.48 78,108 0.5 0.2 0.104 64.1 1

6 Oct 31 1.63 388,130 7.9 0.7 0.326 56.4 46

7 Mar 19-20 0.33 224,579 5.1 0.2 0.363 24.3 8

8 A 3 4 0 59 2 567 738 18 6 3 6 0 116 44 7 442014

8 Apr 3-4 0.59 2,567,738 18.6 3.6 0.116 44.7 44

9* May 14-15 0.9 233,470 4.9 0.9 0.339 122.2 9

10* Jun 2 0.89 288,117 9.1 2.0 0.895 385.8 7411 Jun 10-11 0.37 136,743 1.1 0.1 0.128 28.7 6

* Events 9 & 10 influenced by Arcadia Festival Site pond dredging May 2014

Slide TitleSlide Title

Slide TitleSlide Title

Slide TitleSlide Title

Arcadia Creek EMCsArcadia Creek EMCs

Results & FindingsResults & Findings

Measuring SuccessComparison of 2002-03 to 2013-14 results

Progress toward TMDL goals

Portage Creek 2002 – 2014 EMC Summary

Arcadia Creek2002 – 2014 EMC Summaryy

Average EMC’s Average EMC’s

TP TSS TP TSS

mg/L mg/L % decrease % decrease

yAverage EMC’s Average EMC’s

TP TSS TP TSS

mg/L mg/L % decrease % decreasemg/L mg/L % decrease % decrease

0.157 68.1 32% 15%

mg/L mg/L % decrease % decrease

0.267 94.9 35% 31%

SummarySummary

Monitoring confirmed BMP calculation benefits

Substantial benefits following 10-yrs BMPSubstantial benefits following 10-yrs BMP implementation

TP & TSS EMC decreasesTP & TSS EMC decreases

Reduced peak flows

Moderated average wet weather flowsg

Reduced flooding

BMPs NOT needed everywhere…rather strategic placement

Special ThanksSpecial Thanks

PROJECT PARTNERSPROJECT PARTNERSThe FORUM of Greater KalamazooThe FORUM of Greater KalamazooThe FORUM of Greater KalamazooThe FORUM of Greater KalamazooWestern Michigan UniversityWestern Michigan UniversityCity of Kalamazoo WWTPCity of Kalamazoo WWTPCity of Allegan WWTPCity of Allegan WWTPCity of Allegan WWTPCity of Allegan WWTPKieser & Associates, LLCKieser & Associates, LLCMDEQMDEQMDEQMDEQ

Questions?Questions?

Brian Boyer P EBrian Boyer, P.E.Environmental Engineering Manager

Kieser & Associates, LLCbboyer@kieser‐associates.com

Over 20 Years of Excellence in Environmental Science & Engineering www.kieser‐associates.com