Did you know???Did you know??? One of the most One of the most

popular rivers in popular rivers in northeast Ohio.northeast Ohio.

Has 112,144 acres and Has 112,144 acres and 664 stream miles.664 stream miles.

500 active farms.500 active farms. Includes the Cleveland Includes the Cleveland

Hopkins International Hopkins International Airport Airport

Of the 92.3 miles Of the 92.3 miles tested, 48% were good, tested, 48% were good, 40% were fair, and 40% were fair, and 12% were poor.12% were poor.

ClevelandLake Erie

Medina

Hypothesis #1Land use affects surface water quality, specifically the QHEI.

Land Use and QHEI

0

10

20

30

40

50

60

70

80

6001

081

6001

097

6002

098

6004

081

6004

097

6005

092

6006

092

6008

081

6008

097

6009

092

6010

081

6010

097

7002

092

7003

081

7003

097

7004

082

7004

092

7004

097

Place and Time

Inde

x V

alue

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

Av_QHEIAg Forest

Hypothesis #2Hypothesis #2 As QHEI increases IBI (fish population) As QHEI increases IBI (fish population)

should increaseshould increase

Average QHEI VS. Average IBI

0

10

20

30

40

50

60

70

80

6001

081

6001

097

6002

098

6004

081

6004

097

6005

092

6006

092

6008

081

6008

097

6009

092

6010

081

6010

097

7002

092

7003

081

7003

081

7004

082

7004

092

7004

097

Place & Time

Inde

x Va

lue

Av_IBIAv_QHEI

HypothesisHypothesis #3#3 As Urban areas increase, COD should As Urban areas increase, COD should

increase, and the IBI should increase, and the IBI should decrease.decrease.

Effect of Urban Development on COD Hi

0

100

200

300

400

500

600

700

800

900

1000

6001

081

6004

081

6008

081

6010

081

7003

081

7004

082

6001

092

6005

092

6008

092

6010

092

7003

092

6002

093

7004

097

6004

097

6007

097

6009

097

7002

097

6002

098

place-time

ppm

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

COD HiUrban

Effect of COD Hi on Average IBI

0

100

200

300

400

500

600

700

800

900

1000

6001

081

6001

097

6002

098

6004

081

6004

097

6005

092

6006

092

6008

081

6008

097

6009

092

6010

081

6010

097

7002

092

7003

081

7003

097

7004

082

7004

092

7004

097

Place-Time

ppm

0

10

20

30

40

50

60

COD HiAv_IBI

Another Source of Another Source of Impairment Impairment

Ammonia Ammonia

Ammonia Total VS. Average IBI

0

10

20

30

40

50

60

6001

081

6001

097

6002

098

6004

081

6004

097

6005

092

6006

092

6008

081

6008

097

6009

092

6010

081

6010

097

7002

092

7003

081

7003

097

7004

082

7004

092

7004

097

Place and Time

ppm Ammonia Total

Av_IBI

As ammonia levelsincrease, IBI should decrease.

Possible Causes of Possible Causes of ImpairmentImpairment

Nutrient Enrichment: Caused by Urban Nutrient Enrichment: Caused by Urban septic tanks, sewage problems, and septic tanks, sewage problems, and storm sewer runoff.storm sewer runoff.

Ammonia: Caused by deicing planes at Ammonia: Caused by deicing planes at Cleveland Hopkins International Cleveland Hopkins International Airport.Airport.

Pathogens: Caused by septic tank Pathogens: Caused by septic tank seepage. seepage.

What can be done to What can be done to improveimprove the Rocky River Watershed?the Rocky River Watershed?

• Monitor sewage and storm sewer pipes that run into Monitor sewage and storm sewer pipes that run into the stream, look for ways to control polluted run-off. the stream, look for ways to control polluted run-off.

• Construct a larger buffer zone around airport Construct a larger buffer zone around airport runways to redirect ammonia run-off.runways to redirect ammonia run-off.

• Farmers can put into place conservation practices Farmers can put into place conservation practices What can you do?What can you do?

• Don’t dump materials down storm drainsDon’t dump materials down storm drains• Wash cars at the car washWash cars at the car wash• Clean up chemical spills (oil, paint, fertilizer)Clean up chemical spills (oil, paint, fertilizer)

before they enter the water systembefore they enter the water system

OSC Staff *Steve, Shannon, Leslie, Kathryn

YWSI Staff and Teachers*Paula, Virgine

Laura KramerOur Chaperones

*SAHAJA and ANNE

Our Parents THANKS FOR ALL OF YOUR TIME AND

HELP!!!

Thank You So Much!