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07-14-89 S&W Comm Minutest -July 14, 1989 SEWER AND WATER COMMITTEE MINUTES 8:15 A.M. Attendance: Chairman Nystul, Vice Chairman Hopkins, Councilwoman Hafferman. Others Present: Council President Saverud, Councilman Atkinson, Mayor Kennedy, • DPW Hammer, S/W Supt. Van Dyke, Surveyor Zavodny, Dennis Carver of Carver Engineering. SOUTHWEST KALISPELL Mayor Kennedy requested information regarding the area of the Southwest Kalispell project at 4th Ave. W. and 12th St. W. He has received numerous complaints in regard to the depth of the street. Mr. Carver stated a 300 foot area on 4th Ave. W. from the top of the curb to where the road exists has as much as a two foot at the intersection that the road drops. He then drew a sketch explaining the grade as it relates to drainage. The grade cannot be changed without creating ponding. Some of the properties were adversely affected by the steep drop off edges. Others were affected by the curb being higher than the edge of their properties. At the intersection of 6th and Sunnyside there are two residents affected. DPW Hammer stated the City is responsible to take care of the area behind curbs. He believes that 90% of the problems can be cured once grading and concrete work is completed. He requested input from the Committee for authorization to help the residences. C. Nystul responded that this is a public works jurisdiction. The Committee discussed possible ways to resolve individual problems and utilizing contingency monies to solve them. C. Nystul requested the Committee receive an update on the WWTP and then go back to the Southwest Kalispell project. WWTP - UPDATE Mr. Carver reported they have been delayed in the design process by • two weeks waiting for approval from the State Health Department on the final design criteria and will meet with persons Tuesday July 18, 1989. The issues with the health department are sizing the bioreactor and utilization of existing primary clarifiers. Included in the design is nitrogen removal that actually is not required in the discharge permit at this time. The health department has stated that since nitrogen removal is not required the size of the bioreactor should be cut back. Carver Engineering is trying to justify the larger size from the point of stability of operating the treatment facility and also to comply with future requirements to remove nitrogen. The most difficult issue is sludge handling. The current method is to inject into outlying farm areas, etc. With the biological process, the sludge will take up phosphorus. The sludge cannot be placed into the digestors without doing something extra or the phosphorus will come backoutand there will be an increase in sludge. There are two alternatives for the sludge, i.e., to either build additional storage for the extra sludge and continue to inject in farm land, or to go to a composting operation. Mr. Carver reported that on Thursday July 13, 1989 they went to one of the most up-to-date composting operations on Vancouver Island to see the operation and what type of odors may be generated, etc. Based on this operation he believes the recommendation will be for composting. The new sludge regulations proposed by EPA, which are not yet adopted, will put burdens on communities for extensive soil testing each time sludge is injected. • C. Hafferman questioned the composting procedure. Mr. Carver explained the EPA requirements on sludge is that pathogens, viruses are killed. This can be accomplished in composting by bringing the temperature to 55 degrees centigrade for a few days. Most operations use saw dust or wood chips as a bulking agent. July 14, 1989 SEWER AND WATER COMMITTEE MINUTES r Page 2 • • • After the sludge is dewatered to about 22%, wood chips are mixed in at a ratio of 3 to 1. Piles are built approximately 8 - 10 feet high, 60 - 70 feet long and have airpipesthrough them. Air is then blown through the pipes which creates an environment that causes the temperature to reach 55 degrees centigrade within two days. At the particular plant they visited, the wood chips were then screened out and reused. The compost in this area is used by the communities. They sell or give away the material. DPW Hammer showed a package of compost material after completed. Mr. Carver stated Gary Stempin from the County Landfill also went because the landfill site may be an area considered as the site for composting. Siting the composting may be a problem. It requires two acres of land. He is reluctant to have the site at the WWTP due to odors emmitted. The city owned 40 acre parcel may be another site for composting. C. Saverud questioned if the landfill is interested in involvement. Mr. Carver responded yes, the landfill wants to create a large composting operation in the future. This may be a beginning. Mr. Carver stated that instead of using the injector, trucks will be used for hauling the sludge. Mayor Kennedy questioned the equipment involved. -Mr. Carver responded a loader is the equipment used. Requirements include a building, a paved surface, bins, and a screening operation. The pipes are made of plastic and perforated. The total cost of the Vancouver operation is $48,000 (USA) per year. Mr. Carver stated from an economic standpoint the work on the existing primaries is close to the price of building new primaries. Most of the entire facility will be relocated to higher ground. C. Nystul stated the facility plan made preliminary recommendations, primarily for biological phosphorus removal, but listed some alternatives. The Committee has not heard back from the design engineer as to what alternatives have been selected and what is being looked at. The Council needs to know something about the plant before operation. C. Hopkins stated he is in agreement with all Mr. Carver has reported. He agrees that nitrogen removal requirements will be regulated. Mr. Carver stated they would like to begin on the nitrogen removal now and the plant will have expansion area for future removal. As far as the process goes, there was a lot of discussion of the Bardenpho Process and it has been brought out that there are several processes. The modified UCT process is the one that will work best for Kalispell. It is a variation of the Bardenpho Process or vice versa. C. Nystul questioned if there are licensing fees for the UCT as in the Bardenpho. Mr. Carver stated there is no sure answer. There is litigation in North Carolinaand the attitude is that any biological phosphorus removal facility falls under the patent. This is questionable for UCT. A patent claim may exist. A write up will be provided to the City in the near future on what is known about the patent. C. Saverud questioned if composting is considered innovative or is subject to 85% funding. Mr. Carver responded yes. C. Nystul reported the Parks Committee met this morning and the Soccer Association is looking at the land where the existing baseball field is and from there east and north. He questioned if any of the land is contemplated as being needed for the plant. Mr. Carver responded no. k j my 14., 1989 SEWER AND WATER COMMITTEE MINUTES Page 3 C. Hopkins questioned if the Committee has to take any action or if the report is for information only. C. Nystul responded the presentation is for information only at this time. Heybelieves the Council should be kept aware of progress. After the final • design criteria is approved, it will be an advantage for the engineer and the staff to have Council concurrence. DPW Hammer stated the Council will have to make a decision on the composting site as well'ias the concept. After Stanley, Carver, and the Staff have investigated 15 options regarding sludge handling and the processes there are now only 2 or 3 and a recommendation for composting and the site will be made to Committee. SOUTHWEST KALISPELL Mr. Carver questioned if the Council had any comments or questions regarding the project. C. Nystul commented on the radius on 4th Ave. W. at 12th St. W. He believes the radius is too close to a property line. Surveyor Zavodny explained reasoning for the radius placement and stated no change should take place. If the radius is shortened, it will not change the distance. Given the conditions, the best has been done. C. Hopkins stated if money is available in contingency funding the staff should have opportunity to negotiate agreeable compromise. DPW Hammier stated the biggest expense to the City is the manhours. The carport repair will be approximately $2,500.00, walkways and steps will be other items. DPW Hammer is keeping manhours and work orders for reimbursement from contingency of approximately $60,000. He will place the repairs as a priority at this time. Mr. Carver explained the curb section used is a drive over curb, a cut down curb section. He wanted to confirm this will continue through the remainder of the project rather • than putting in curb cuts. The Committee agreed this has already been discussed and approved. SEWER MAINTENANE VEHICLE BID S/W Supt. Van Dyke stated one bid was received for $12,853.00, which is $1,500.00 lower than expected. The bidder specified that he needed to know of acceptance or rejection by July 10, 1989. This was not possible and the Mayor, after contacting four Council Members, decided a letter of intent to purchase should be written. C. Hafferman moved the Committee recommend to Council to accept the bid received. The Committee was in agreement and the motion carried. C. Nystul reported he had spoken with C. Schindler and both generally agreed that if the bid met the specs, and if prices for the 1990 models were expected to be higher, the bid should be accepted. TELEMETRY S/W Supt. Van Dyke stated that frustration with the system and constant alarms led him to call a meeting with motorola. The system was working but not fine tuned. Alarms were continually triggered and the staff has spent a tremendous amount of hours coming into the office to investigate and reset the system. Motorola reprogrammed portions of the system and since that time the system is working. Most of the alarms were glitches in the system. S/W Supt. Van Dyke stated his intention is to withhold all expenses relating to time • spent with the inoperable system after the contract completion date. ARMORY WELL S/W Supt. Van Dyke reported the Armory Well remains inoperable due to the delay in shipment of an adaptor kit for the hydraulics which is to be received Monday July 17, 1989. The variable starting motor is in place but cannot be run until the check valve is completed. July 14, 1989 SEWER AND WATER COMMITTEE MINUTES Page 4 ASSISTANT S/W SUPT S/W Supt. Van Dyke reported the position has been posted and will close August 4, 1989. • PURDY/REMICK SEWER Surveyor Zavodny reported the easement has been 99% obtained for the Purdy/Remick sewer project. Once this happens, Thomas, Dean & Hoskins has been advised to proceed. Adjourned: 9:40 A.M. as •