Stormwater News

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T E C H N I C A L

P R O G R A M

March 16th, 2017

Volume 1, Issue 1

Infrastructure Highlights:

Outfall #69 is Relined

story by Lyle Bell

and Windsor Island Rd. The pipe outfalls to the Willamette River

Contractors from Michaels install CIPP (Cured in Place Pipe Liner)

Towards the end of January, contractors from Michaels Corporation completed the Cured in Place Pipe relining project at 1310 Rafael Drive. TV camera work on the storm line in this area revealed a linear crack in the existing pipe which drains a neighborhood that runs from Juniper Ave all the way to the intersection of Chemawa Rd

The TV inspection work showed that the crack in the pipe had extended from a 4’ crack in 2011 to over 56’ in length in 2016. Due to the proximity of the pipe to a housing foundation it was determined that the best way to proceed with a repair would be with the Cured in Place Pipe Liner Technology. This process that was developed in the 1970’s in London England, utilizes a resinsaturated felt tube that is pushed through the damaged pipe. As the liner pushes into place, steam is pumped through the pipe which activates and cures the

resin. This “Trenchless Excavation” technology makes it possible to repair damaged pipes without digging, potentially saving the city thousands in lowered repair costs.

According to one of the property owners along Labish, the fishing used to be quite good in Labish. Back in 1980’s the creek is said to have contained 12-13” cuttbow trout. This is a hybrid

species that occurs when rainbow trout spawn with cutthroat trout. One of the interesting things about this hybrid trout is its natural resistance to whirling disease. This fish disease is caused by a parasitic worm

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Steam is used to cure the resin impregnated fiberglass sock that lines the pipe.

Cuttbows in Labish?: A fish tale came across the front counter at City Hall recently.

CIPP Stats: Cost $29,623 The liner installed is 9mm thick . Costs about 20%-40% less than open trench repair or replace . The liner does not rely on the host pipe for any strength, rather it stands on its own. Total Length 159' (from manhole to outfall

Inside this issue: WATER FESTIVAL

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STORMWATER DESIGN STANDARDS

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CUTTBOWS CONTD.

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FAIRGROUNDS RAI-

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INGARDEN

that infects the host fish with a cyst that causes neurological damage, causing the fish to whirl around out of control. Story cont’s pg. 2.

EDUCATION NEWS

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TREE ASSESSMENT

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Stormwater News Cuttbows in Labish? cont’d It is probable that hybrid cuttbows could have inhabited Labish Ditch, because they can occur anywhere the species overlap. It is unlikely there are many of these unique trout hybrids left in the Labish or Claggett Creek systems. Labish at a high winter peak flow.

“IT IS HORRIFYING THAT WE HAVE TO FIGHT OUR OWN GOVERNMENT TO SAVE THE ENVIRONMENT.” ANSEL ADAMS

Years of habitat degradation caused by development in the flood plain, unchecked pollutant runoff, eroding banks and lack of shade cover has left these creeks

with little ability to support aquatic life. The absence of spawning gravels in these creeks, provides an even greater barrier to trout and salmon. Most of the bottoms of these waterways are now made up mostly of fine sediment which covers small and medium size gravels that juvenile trout and salmon need to survive. In healthy trout and salmon bearing streams, juvenile fish use the interstitial spaces in

between cobbles and boulders to hide and avoid predation as well as seeking shelter from high winter flows. The lack of woody debris in the creeks is also contributing to a lack of fish. Many studies have proven that the removal of beaver dams and other woody debris in creeks has seriously detrimental effects on the ability of trout and salmon to survive.

Stormwater Design Standards are being developed The Environmental and Technical Division has been busy working on a set of stormwater design standards that will feature the utilization of Underground Injection Control (UIC) devices , or drywells to put polluted stormwater runoff into the ground. These new standards will also feature some LID and Green Street Infrastructure design options as well. Vegetated

Stormwater facilities like the

new ones at the round-a-bout on Chemawa and Verda will be one way that Keizer attempts to lessen the impact that stormwater runoff has on Claggett Creek and Labish. The group is compiling these measures into a manual that will be used in future development.

Hotspot on Pollution: Copper Copper carries the chemical symbol of CU from the latin Cuprum, with an atomic number of 29.

Copper as a pollutant

As a pollutant carried in stormwater copper can be traced back to vehicle brake pads, architectural elements in building design like gutters, copper pesticides used in Page 2

home or agricultural sprays, industrial copper, atmospheric deposition, soil erosion, and vehicle fluid leaks.

Copper at high doses in humans has been shown to cause intestinal and stomach disorders, liver and kidney damage, and anemia.

It’s estimated that 90,000 lbs of copper makes its way into San Francisco Bay every year from Urban runoff of the above listed sources.

Copper is toxic to many marine species and especially sensitive are Salmon. It can interfere with the sensory systems causing death.

Volume 1, Issue 1 MWOG to build Rain Garden at State Fairgrounds. Members of the MidWillamette Outreach Group (MWOG), which is represented by the Cities of Salem, Albany, Keizer, Corvallis, along with Marion County and the Marion Soil and Water Conservation District, met with Richard Kansky the president of Green Acres Landscaping at the Oregon State Fairgrounds. MWOG has proposed to build a demonstration rain garden at the Fairgrounds.

This is an unbelievable outreach opportunity for MWOG. The fairgrounds receives in excess of 1 million visitors a year. Most of which will travel past the demonstration rain garden. Partnerships with Green Acres Landscaping and Highway Fuel are being formed from the project, which will convert a roughly 700 square foot raised planting bed into a functional treatment rain garden that will

capture the roof runoff from the floral building. After an initial meeting to look at the preferred site location, a plan of action was drafted, with Green Acres taking the lead on utility locates. Marion County and City of Keizer Public Works planning for the site excavation and medium installation Highway Fuel has offered to supply the stormwater quality soil mix that will filter pollutants.

City of Keizer staff worked on a planting design that will add a bright colorful display during the fair season. With good luck and timing during the construction phase we hope to have this project done sometime this spring.

Proposed planting plan for the State Fairgrounds Rain Garden

The landscape in front of the state fair floral bldg will be converted into a rain garden.

Did you know: Ansel Adams photography helped get Kings Canyon designated a national Park. FDR designated it after seeing his book of photos: Sierra Nevada, The John Muir trail

Project.

Education News: Lot’s of goings on in the education world here at the City of Keizer.

about how important clean water is and what we are doing to protect it.

The Keizer Water Festival will take place in the civic center on Tuesday May 9th. We have invited the entire 128 students of the Keizer Elementary’s fourth grade class to come out and learn

Yoshikai Science Night on April 27th. Will feature a demonstration by Keizer workers on plant science and clean water Chemeketa Phytotechnology Class Spring Term. Keizer

staff developed an entire class curriculum for Chemeketa to teach this spring term dealing with how plants can clean and remediate environmental degradation. AVID Keizer staff continue to provide education for first generation students planning on attending college. Page 3

Chemeketa Students learn about planting trees to provide riparian habitat enhancement and wetland mitigation.

Pride, Spirit and Volunteerism CITY OF KEIZER

City of Keizer 930 Chemawa Rd. NE Keizer, OR 97303

The Environmental & Technical Division is responsible for implementing the City's regulatory programs and meeting compliance strategies of stormwater permits. These programs are primarily focused on protecting water quality in local waterways and groundwater. Protection of these resources are required through the federal Clean Water Act and Safe Drinking Water Act.

503-856-3444 [email protected]

The City’s 3 mandated programs are as follows: 1. The National Pollutant Discharge Elimination System (NPDES) Phase II permit. This permit allows the City to discharge stormwater to local waterways through implementation and compliance with a Stormwater Management Plan. 2. The Wastewater Pollution Control Facilities (WPCF) permit. This permit allows the City to manage stormwater by injection into the ground through implementation and compliance with a Underground Injection Control Management Plan. 3. The Total Maximum Daily Load (TMDL) Implementation Plan. This plan manages the discharge of stormwater that flows overland directly to waterways.

We are on the web at: www.keizer.org Tree Assessment Internship Wraps Up Our Chemeketa Tree Assessment intern Arthur Selander is wrapping up his work with the City this term.

Surveying street trees at Parkmeadow Drive.

Arthur surveyed trees at Claggett Creek Park, City Hall, Blair Park, Country Glen Park, Sunset Park and the ROW boulevard style planting along Parkmeadow Drive. The map below shows the data collected in a visual format, the green symbols

show significant trees, These are trees that because of the larger size and benefits they provide must be replaced a a 2 to 1 ratio if they have to be removed. Arthurs survey data provides a lot of useful stormwater management information. Since trees provide interception and uptake of stormwater runoff, managing them as a city asset can be useful.

Tree Stats: 

603 trees were surveyed between September and March.



The most common tree in the survey was Acer rubrum, the red maple



The Red Maple is native to the eastern US where it sometimes called the Swamp Maple.



A study in Oakland, Ca. showed In Oakland, California, the continuous tree canopy is estimated to intercept 4 inches of rain over one acre in a typical year— about 108,000 gallons