photo by Julie Spencer
 

Regular Meeting
Bigfork Stormwater Advisory Committee (BSAC):
February 15, 2012

12:30 P.M.
Bethany Lutheran Church

 

Committee Members:
Sue Hanson,
Chairman
837-5323

btrfly@montanasky.net
David Christensen

Vice Chairman
837-4565

Harry Hyatt

982-3428

Bob Keenan

250-4111
Paul Rana
837-1102
Mike Koopal

Advisor
862-4327

 
Mission Statement:
The Bigfork Stormwater Advisory Committee will provide timely recommenda-tions to the Flathead County Commissioners on stormwater system improvements in the Bigfork area to protect the quality of local water resources.
Due to space limitations on this website,a pdf copy of the PER and 48 North Assessment is available on the county website: flathead.mt.gov/ on Commissioner page.
 

FLATHEAD LAKE

“To Keep It Blue, It’s Up To You”

 

Sue Hanson, BSAC Chairman, presents Doug Averill, Chase Averill and Jim Frizzell, of Saddlehorn LLC, the 2011 Stewardship Award in recognition of their leadership and superior stormwater retention in their development.  Saddlehorn has received a Platinum L.E.E.D. (Leadership in Energy and Environmental Design) Certification for the Welcome Center at Saddlehorn and Gold L.E.E.D. Certification for their restoration of the Marina in Woods Bay.

AGENDA


Pollution is being discharged
directly into Bigfork Bay

There is ongoing and regular discharge of pollutants including oils, grease, sediment, heavy metals and fecal coliform bacteria entering the Swan River, Bigfork Bay, and into Flathead Lake from the Village area of Bigfork.  These pollutants enter through Bigfork’s untreated stormwater system, and areas with inadequate stormwater containment, which carries nutrients and contaminants that are harmful to the ecosystem and the aquatic life of the lake. This discharge into Bigfork Bay, Swan River, and Flathead Lake threatens recreational activities and creates a potential hazard

to human health and flood safety.

Pollution Verified

The testing of water quality in 1996 by the Flathead Biological Station in Bigfork Bay revealed that stormwater runoff from Bigfork contains high

concentrations of fecal Coliform bacteria and other nutrients (specifically during the summer and fall precipitation events) that exceed EPA criteria for human contact and pose a public safety threat.  In the subsequent ten-year period we can only surmise it has certainly become substantially worse.


photo by Sue Hanson
History
Neither Pacific Power nor Flathead County has installation records of the of the Bigfork stormwater system. Speaking with long time residents of the area, and the Bigfork Water and Sewer District (BWS), it is apparent that the stormwater system was installed before 1964, when the sewer system was built. The assumption is that the storm water system was installed in the mid-fifties at the same time as the water system for the Bigfork Village area. Four Corrugated Metal Pipes (CMP) empty stormwater and the pollution it contains directly into Bigfork Bay.  Obvious drains, clean-outs, CMP’s and catch basins in the streets surrounding the Bigfork Bay have been located and noted. It is not known whether all are functioning nor where all these drains empty. However all ultimately do empty into the Swan River, Bigfork Bay and Flathead Lake.

Today

The Bigfork Stormwater Project was initiated by the Flathead County Commissioners to update the Bigfork Stormwater System infrastructure. The decision to upgrade the system was made, in part, to control minor flooding in Bigfork caused by undersized stormwater conveyance pipes.  Another factor in the decision was the large volume of unfiltered water containing pollutants, nutrients and fecal coliform bacteria that the stormwater system regularly delivers to Bigfork Bay.

Early in the project the Flathead County Commissioners selected citizen members to serve on the Bigfork Stormwater Advisory Committee (BSAC) to provide to them recommendations related to the project.  One of the first steps for the project was to develop a Preliminary Engineering Report (PER).  A second Engineering Assessment was completed in December 2009 by 48 North Civil Engineering, which focuses on changes in stormwater flow from school property and a more in-depth study of the Bridge Street area south of Bigfork Bay.   The Bigfork Public Schools have installed two detention and filtration systems (2008 & 2009) and five additional dry wells on school property to reduce the amount of stormwater reaching the conveyance system on Grand Drive.   The public is welcome to attend any regular BSAC meetings held the last Wednesday of each month, 12:30 p.m. at Bethany Lutheran Church or contact Chairman, Sue Hanson, at 837-5323 or email: btrfly@montanasky.net.

 

Two informational signs, 1-Bigfork Schools 2-Western States Insurance (Bridge St), explain the Why and What's Being Done on Grand Drive.

 

 

Jordan "Corky" Lambert (Imbrium Systems Corp.) displays one of the 19 filtering units to be installed in the Jellyfish unit.

View through the manhole of the Imbrium Jellyfish.  Unit is 15' wide and filters stormwater before discharge into Bigfork Bay/Flathead Lake.

Crews from Filterra Bioretention Systems installed two lilac trees and two dogwood shrubs in the four Filterra units along Grand Dr.

 

CURRENT STATUS

June 29 , 2011 update on the Grand Drive construction.  Construction was completed and filtering systems brought online June 20,2011.  The slip line between the Embrium Jellyfish and the outlet into Bigfork Bay will be completed when water levels in the Bay are down in the fall of 2011.  

 

FUNDING PARTNERS

The following have supplied financial support to facilitate this project.

2007:  $45,000 ($15,000-DNRC Planning Grant. $5,000-Flathead Basin Commission and $25,000-DEQ 319 ’07 Funding Cycle)

2008:  $60,000-DEQ 319 ’08 Funding Cycle

2009:  $145,000-DEQ 319 '09 Funding Cycle, $100,000 - DNRC (09) and $625,000 - Treasure State Endowment Program Grant

2010:  $200,000 DEQ 319

2011:  $100,000 DNRC/RRGL

Total grant funds to date $1.3 million

$725,000 - Treasure State Endowment Program

Bigfork Storm Advisory


photo by Flathead County GIS Department

 

MINUTES

(All minutes are available electronically)

 

Minutes of Meeting
Wednesday, 11 January 2012
DRAFT

Attendees for this meeting:
Sue Hanson, Chairman
Paul Rana, Secy
Dave Christensen, Harry Hyatt, Bob Keenan Members
Camellia Lanham, Bigfork Eagle Newspaper
Mike Koopal, Whitefish Lake Institute
Pam Holmquist, Flathead County Commissioner
Brett Walcheck, 48th North Engineering

1233: Meeting opened by Sue. A quorum was deemed present and the meeting was called to order. The agenda for this meeting was discussed. Minutes from 14 December 2011 meeting were approved.

1235: Mike Koopal gave a presentation on the Pre-Construction Sample Analysis Program Report. This report and slide show will also be presented at the DEQ Stormwater Conference in April 2012. He discussed several of the calculations and sampling techniques. The report must still be approved by MTDEQ. Bottom line result to take away is that the MS4 levels, which are acceptable, were exceeded multiple times in the dozens of samples which were taken in the basin in pre treatment areas. Samples also showed that there are reductions in the composition of outfall, especially on Grand Drive, due in some part the infiltration devices at the Bigfork School. Mike will continue to correspond and coordinate with Brett from 48th North for further data recovery and analysis. Sampling can proceed so long as DEQ has a modified SAP. Mike will submit the revision by mid Feb 2012.

1310: Brett gave a progress report on Bridge Street Engineering. Brett has preliminary numbers for both BS North and BS South. He discussed the challenges of percolation rates at the potential infiltration gallery. Pacific Corp was concerned about PCB infiltration, which might defeat their work on the same subject. Brett said that an alternate treatment of a cartridge facility in addition to a Hydro-dynamic separator is now being considered. BS North cartridge facility location will be relocated to the Cottages property, potentially. Brett will call Walter Kuhn, owner of the Cottages, to discuss an easement.

Brett discussed the costs involved and the engineering and construction costs and mark ups normal for construction periods. Total estimate $1,075,239.56. Total assessment estimate is $1,376,398.05 (which includes interest). The RSID could be bonded for 10 year, most likely. Dividing the $1.3M by 10, then again by the number of rate-payers, will net the amount per rate payer. Maintenance costs are not included in these numbers. Brett will talk with Mike Pence regarding maintenance numbers. This discussion on funding does not include future grant money potential.

1325: Discussion about the Survey. Dave did an analysis of the survey results and passed it to the meeting members, and discussed his method. The question was asked about the next sample protocol in order to gain figures that showed improvement in the quality of the outfall…in order to use the data for public consumption, and hopefully aid in the convincing the public of the value of the effort. Presently the system sampling is left to an arrangement with the Bigfork Water and Sewer District. In future automatic sampling could be needed. But for the interim, sampling could be done at the next rain event. RSID process should have some kind of sampling results that shows the public that the new infrastructure is working. (from 14 Dec 11 meeting, these were the figures discussed: 3382 surveys sent out. 1985 were sent to area A (Bigfork water and sewer district), 1067 were sent to area B, the Bigfork Zoning district [BWSD] not already included in the BWSD, and 330 were sent to area C, the Swan River road. There was a 28% return rate. The rough count of Yes responses was 413 and the No responses was 460) For next month’s meeting, we should be looking at the way forward regarding telling the public the story of what the money spent has accomplished so far. This would be part of the Education and Outreach program. Need someone to sit with Mike Pence and discuss the RSID process. Dave and Bob will tentatively go.

1407: Election of Officers for 2012. Nominations for Chairman, VC, and Secretary were entertained. Sue was nominated and seconded for Chairman. Unanimous Yes. Nomination for Vice Chairman. Harry was nominated. Unanimous Yes. Paul accepts the nomination for Secretary. Unanimous yes.

1411: Next meeting will be Feb 15th. Harry will chair the meeting.

1413: Adjournment.

Submitted by: Paul J. Rana, Secretary, BSAC

Minutes of Meeting
Wednesday, 14 December 2011

Attendees for this meeting:
Sue Hanson, Chairman
Paul Rana, Secy
Dave Christensen, Harry Hyatt, Bob Keenan, members
Heidi Desen, Bigfork Eagle Newspaper
Lamont Kincaid
Debbie Pierson, Flathead County
Brett Walcheck, 48th North Engineering
Larry Van Rinsum, Flathead Conservation District

1230: Meeting opened by Sue. A quorum was deemed present and the meeting was called to order. The agenda for this meeting was discussed. Minutes from 16 November 2011 meeting were approved. Lamont discussed his next few months of meetings and brought the decals to the committee for safekeeping.

1235: Sue brought the new brochures from the survey that was sent out. The brochures were corrected from the printing that was part of the survey. These brochures are part of the education and outreach program.

1238: Sue discussed the next quarter meeting schedule. Presently the next meetings will be 11 Jan 2012, 15 Feb 2012, and 28 Mar 2012.

1240: Discussion about the Survey netted a total of 3382 surveys sent out. 1985 were sent to Area A (Bigfork water and sewer district), 1067 were sent to Area B, the Bigfork Zoning district [BWSD] not already included in the BWSD, and 330 were sent to Area C, the Swan River road boundary. There was a 28% return rate. The rough count of Yes responses was 413 and the No responses was 460. Sue will have a meeting with the commissioners on 21 Dec 2011 to discuss the results.

1247: Discussion about the current level of returns for each area (A,B, and C) ensued. Sue asked all members to be prepared at the 11 Jan 2012 meeting to discuss the relative return rates, the comments received, and individual thoughts how to proceed for the next survey. Also discussed briefly was the matter of what agency or organization actually presents the request for the RSID. The Chamber of Commerce and Community Foundation for a Better Bigfork were mentioned as possible candidates.

1310: Walcheck notified the BSAC that the Maintenance Handbook for newly installed filtration structures installed to date has been completed. He indicated the maintenance procedures were discussed with Dave Prunty, County Public Works, and received approval. Brett discussed the finalized elements of Electric Ave North and River as well as the lining that was to be installed in the pre-existing corrugated pipe at the end of the new construction on Grand Ave. That lining should be installed by 21 Dec 2011.

1315: Bob Keenan gave to Brett a sketch map of the area along River street between Sotheby’s and Riecke’s Gallery where there could be a possible infringement on sanitary sewer pipes by any work that was done on the collector at the bottom of River Street. Brett will consult with the onsight Manager to insure there was no encroachment by the Stormwater work.

1325: Brett distributed maps and infrastructure maps for Bridge Street North and South and gave a detailed discussion on the probabilities and possibilities of the engineering of the system to treat this area. Larry brought up the issue that Pacific Corps would be doing some work adjacent to the power plant involving the removal of soil and the replacement thereof. Larry will get with Brett for more details. Additional issue; the Bridge Street South area where the parking slots exist now, and whether to maintain parking area installed by an individual property owner on County right of way or proceed with sidewalk design. Net result of the discussion is that this is a complicated and complex substructure organization, including large rock outcroppings on the uphill section of Bridge Street south, between the Insurance building and CenturyLinc.

1350: Discussion on Bridge Street North, starting near the Jug Tree and going south. Modification to curbs and gutters have been looked at to accommodate new construction. Osborne landing has some private issues that may become germane for discussion later, but at the moment the initial plan aims to work around any private property issues. Some easement questions will be to be addressed with the Flathead County attorney. Brett said that he had previewed these plans with Dave Prunty, Flathead County Roads and Bridges, prior to this meeting. Estimate of costs for this part of the project will not be fully accurate for some time, but Brett may be able to present a bracketed number with a plus or minus increment for the next meeting. Debbie asked about including these plans in a DEQ submission so that the DEQ feedback would be available prior to conducting a public presentation.

1420: The Post-Construction Sampling Analysis Plan is being completed by Mike Koopal, according to Debbie, after funding was secured. Sue will invite him to the 11 Jan 2012 meeting. Mike has been coordinating with Brett’s office to reach a conclusion to the SAP. Next regular meeting is scheduled for January 11, 2012, 12:30pm at Bethany Lutheran Church. Don’t forget time sheets at the end of the month.

1425: Meeting Adjourned.
Submitted by: Paul J. Rana, Secretary, BSAC