LISBON PUBLIC WORKS Highway Department Solid Waste Department Sewer Department Town Engineer

1. LISBON PUBLIC WORKS Highway DepartmentSolid Waste Department Sewer Department Town Engineer Presented by: E. Ryan Leighton Public Works Director/Town Engineer

2. Introduction • Public works is the combination of physical assets, management practices, policies, and personnel necessary for government to provide and sustain structures and services essential to the welfare and acceptable quality of life for its citizens. American Public Works Association • In 1974 the first Public Works Director was hired in Lisbon and tasked with planning, organizing, and directing highway functions, sewer operations, solid waste disposal, and other miscellaneous functions. The Lewiston Daily Sun, September 23, 1974

3. Public Works Today Lisbon Public Works is structured in much the same way.

4. Highway Department • Highway Department • WINTER – Responsibilities include plowing and sanding approximately 70 miles of streets and roads as well as all sidewalks in town. In between winter events trucks are washed and greased, cutting edges are checked and changed as necessary. Based on the conditions of some of our roads, cold patching is an ongoing activity. Depending on the winter, snow removal from the Downtown areas and Municipal parking lots is required • SPRING – Sweep all streets and sidewalks. General roadside debris removal as well as repairing any lawn damage due to snow and ice removal activities. Paint all crosswalks, stop bars, and lane arrows. • SUMMER – Repair or replace damaged curbing, ditching, culvert replacements, miscellaneous capital improvement projects, and preparation of streets prior to paving. Assist with the Moxie Festival and a wide variety of projects for other Town Department. • FALL – Cut roadside brush, continue ditching efforts. Prepare equipment for winter by installing plow gear, sanding spinners, and finishing any necessary equipment repairs. Maintain the downtown areas by sweeping and removal of debris • Mechanics • Responsibilities include the repair and maintenance of approximately 71 units across all Town Departments which include vehicles, stationary generators, compressors, and riding mowers. In addition to regularly scheduled maintenance must also respond to breakdowns and ongoing repairs to equipment utilized in extreme conditions

5. Highway Department (cont) • Current Highway Equipment • 1999 International 4700 w/steel side dump body with sander and plow gear • 2002 Sterling SL8500 w/Stainless Steel side dump body with sander and plow gear • 2003 Sterling SL8500 w/Stainless Steel side dump body with sander and plow gear • 2003 Sterling SL8500 w/Stainless Steel side dump body with sander and plow gear • 2004 Sterling SL8500 w/Stainless Steel side dump body with sander and plow gear • 2008 International 4400 w/Stainless Steel side dump body with sander and plow gear • 2007 Ford F150 • 2000 GMC C3500 • 2004 GMC 3500 HD w/stainless hopper sander insert and plow • 2006 Chevrolet 2500 HD w/plow • 2004 Ford F250 • 2003 Ford F250 w/plow • 2005 Case 590SM Backhoe • 2009 Kawasaki 65ZV-2 Loader • 2006 Johnston MX450 Street Sweeper • 1996 Trackless MT5 Sidewalk Snow Blower w/sander, plow, sweeper • 1988 Ingersoll/Rand 85 tow behind air compressor

6. Highway Department (cont) Goals and Objectives • Road Surface Management System - RSMS • Low Cost Software used by Maine Local Roads • Pavement Condition Assessments currently underway • Will be utilized in development of Pavement Management Plan • Regulatory and Warning Sign Management Plan • According to the Manual on Uniform Traffic Control Devices by June 14, 2014 the Town must have an assessment or management plan in place to maintain regulatory and warning sign retroreflectivitiy. • Ongoing development of Standard Operating Procedures and Policies • Update Equipment Replacement Plan • Asset Management system to be utilized across all areas of Public Works

7. Storm Sewer – MS4 • Municipal Separate Storm Sewer System A conveyance or system of conveyances owned by a state, city, town, or other public entity that discharges to waters of the U.S and is • Designed or used for collecting or conveying stormwater • Not a combined sewer • Not part of a sanitary sewer system • Polluted stormwater is often discharged untreated through these systems into local waterbodies. In order to prevent harmful pollutants from being washed or dumped into an MS4 the Clean Water Act requires operators, in our case the Town of Lisbon, to obtain a NPDES permit and develop a stormwater management program.

8. Storm Sewer – MS4 (cont) Clean Water Act Program Implementation • Phase I, issued in 1990, requires medium and large cities or certain counties with populations of 100,000 or more to obtain NPDES permit coverage for their stormwater discharges. There are approximately 750 Phase I MS4s nationwide. • Phase II, issued in 1999, requires regulated small MS4s in urbanized areas, as well as small MS4s outside the urbanized areas that are designated by the permitting authority, to obtain NPDES permit coverage for their stormwater discharges. There are approximately 6,700 Phase II MS4s nationwide. • As a result of the 2010 Census Lisbon is now one of 30 communities in Maine required to comply with The General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems. In general, the Maine MS4 permit obligates communities to maintain their drainage systems and reduce pollution.

9. Storm Sewer – MS4 (cont) • Map of Regulated area

10. Storm Sewer – MS4 (cont) Androscoggin Valley Stormwater Working Group • Consists of the municipalities of Auburn, Lewiston, Lisbon, and Sabattus working cooperatively to develop, implement, and enforce a Stormwater Management Program Plan by implementing six minimum control measures identified in the General Permit. Six Minimum Control Measures • Implement public education programs to help the community understand its role in keeping water clean. • Engage the public in decision-making throughout the program. • Find and fix leaky or unauthorized sanitary sewer lines that might be connected to the drainage system. • Ensure that construction projects do not pollute runoff with sediments and debris. • Ensure that new development and redevelopment control and treat runoff before it leaves private property. • Engage in municipal roadway best practices such as cleaning drainage systems, sweeping streets, and ensuring municipal activities like fleet vehicle washing and lawn maintenance do not contribute to pollution.

11. Storm Sewer – MS4 (cont) Initial Requirements of the Permit • Participation in Annual Public Works Day with AVSWG Communities - Spring 2014 • Develop watershed based storm sewer system • Develop prioritized dry weather outfall inspection plan • Develop notification procedure to trigger awareness of requirement for developers to adhere to the Maine Construction General Permit for projects which disturb greater than 1 acre • Document activity that disturbs one or more acres in Urbanized Area • Develop Site Inspection procedures to ensure projects are in compliance with MCGP and Chapter 500 • Implement Non Stormwater Discharge Ordinance by January 10, 2015 • Implement Post Construction Discharge Ordinance by June 30, 2015 as well as post construction BMP inspection procedure • Inventory municipal operations contributing to stormwater or surface water pollution and develop written operation and maintenance procedures • Develop and Implement biannual sediment removal program • Develop and Implement Stormwater Pollution Prevention Plan

12. Solid Waste • In accordance with the Maine DEP Solid Waste Management rules, the Lisbon Transfer & Recycling Center handles solid waste and provides recycling service for the residents of Lisbon.  • Mandatory recycling became effective by ordinance on January 1, 1989 • Pinewoods Road Landfill ceased disposal operations in 1990 • Solid Waste Department Established by Ordinance in May 1996 • Landfill Closure substantially completed October 1998 • Initial Post Closure Monitoring of 5 groundwater wells at the landfill as well as sampling 10 residential wells continues on an annual basis. • July 2013 Maine DEP recommended discontinuation of residential well sampling

13. Solid Waste (cont)

14. Solid Waste (cont) • Daily Routine • Assist citizens– In addition to helping the elderly or handicapped we direct citizens in proper separation of their recyclables • Collect fees – Items such as shingles, couches, mattress, wood, etc. require fees to be collected at the time of disposal. • Transportation – Annually nearly 4500 tons of materials are trucked by staff. Examples are: trash to MMWAC in Auburn, bulky waste to Grimmel industries in Topsham, shingles to Commercial paving in South Portland, wood and sheetrock to MB Bark Mulch facility in Auburn, etc. • Packaging – Three balers are used daily to make cardboard, newspaper and mixed paper bales which are stored in trailers until full. We also store CRT’s and electronic devices as well as tires until the volume is large enough to be picked up by third parties. Waste oil is tested prior to being pumped into a larger holding tank. • Current Equipment Assets • 2007 Sterling LT9500 Tractor Trailer Truck • 1997 Ford 9000 Tractor Trailer Truck • 2003 Montaine Dump Trailer • 2010 Stecco Compacting Trash Trailer • 2012 Manac Hardox Steel Demolition Dump Trailer • 2013 J&J Compacting Trash Trailer • 1999 Case 621C Loader • 2001 Daewoo Forklift

15. Solid Waste (cont) 12 Year Recycling Summary

16. Solid Waste(cont) Three Year Comparison of Revenues

17. Solid Waste(cont) • Recycling Rates • Lisbon’s Recycling rate has historically been approximately 60% while the State Average hovers around 40% • Goals and Objectives • Maintain Equipment Replacement Schedule • Punch Card system or other non-cash means of collecting fees for yard items • Scale system for accurate measurement of incoming yard items

18. Sewer Department • The Lisbon Sewer Department was created as a result of the Clean Water Act Passed in 1972 • The act established the goals of eliminating releases of high amounts of toxic substances into water, eliminating additional water pollution by 1985, and ensuring that surface waters would meet standards necessary for human sports and recreation by 1983. • The National Pollutant Discharge Elimination System (NPDES), which is a permit system for regulating point sources of pollution. The Treatment Plant’s discharge to the Androscoggin River is regulated under this permit and is due to be renewed in 2015. • From the mid seventies until January 1993 the Sewer Department was municipally operated. In 1993 the engineering firm of Whitman and Howard, Inc. assumed responsibility for the operation of the Treatment Plant and Collection System • In July 2006 the Town terminated contract operations with Earth Tech and functions as a municipally run Department.

19. Sewer Department (cont) The Lisbon Sewer Department includes the following infrastructure features: • Treatment Plant – Originally Constructed in 1974 • Headworks – New facility installed in 2006 includes septic receiving • Fine Bubble Aeration – upgraded in 2002 • Clarifiers – Constructed in 1990 and one clarifier was partially rebuilt in 2007 • Dewatering System – Centrifuge installed in 2003 • Collection System • 12 Pump Stations • ~38 Miles of Sewer Main • Assets • 2014 Freightliner with Vactor Sewer Cleaner • 1996 Chevrolet Kodiak with Vaccon Sewer Cleaner • 2001 Freightliner crane/bucket truck • 2008 Ford F250 with utility body and plow • 2003 Chevrolet 2500HD with dump body insert and plow

20. Sewer Department (cont) Laboratory Work • Collect required samples to complete lab testing • Conduct pH testing on Influent and Effluent • Settleable solids testing is done on the Influent and Effluent • Settle-o-meter testing is done on the contents of the aeration tank • Check the Dissolved Oxygen level of the aeration tank and adjust it if necessary • Total Settleable Solids (TSS) testing is done on the Mixed Liquor, Return Activated Sludge (RAS), Sludge Holding Tank (SHT), Influent and Effluent • Biochemical Oxygen Demand (BOD) testing is done on the Influent and Effluent on Monday, Wednesday and Friday. The tests are put into the incubator for five days and are read on Saturday, Monday and Wednesday

21. Sewer Department (cont) Daily Rounds • Check the level of the Sludge Holding Tank to determine wasting needs • Exercise the Return Activated Sludge pump and grab the RAS sample • Check sludge blanket depth in the clarifier • Rake the aeration tank discharge bar rack • Visually review operation of all systems Additional Seasonal Requirements • May 15th to September 30th the Effluent is chlorinated requiring additional testing • Maintain a Chlorine Residual in the Effluent of 1.0mg/L or less (levels tested twice a day) • De-chlorinate the Effluent sample used for the BOD testing • E-Coli Testing is done 3 days a week

22. Sewer Department (cont) Sludge De-watering • Sludge dewatering is done to remove excess solids from the plant system on an as needed basis. The amount of solids in the system will determine how often we dewater during the week. We usually dewater twice a week for 8 hours a day at this time of the year . Once dewatered the sludge is hauled to a composting facility.

23. Sewer Department (cont) Pump Station Inspections • The pump run hours are logged • The condition of the equipment at each station is visually inspected to identify leaks, abnormal sounds, or evidence of improper operation. • The float switches are checked for proper operation and cleaned when necessary • The valves are exercised regularly to ensure they operate freely • The wetwells are visually inspected to determine if cleaning is necessary • The standby generators are inspected and fluids are checked. They exercise automatically once a week • Removal of grit from the Davis Street pump station Sewer Line Cleaning • All sewer lines in town are cleaned annually starting at the line furthest from each pump station and working towards the individual pump stations. • Lines with a buildup of sand and rocks will be vacuumed while cleaning. • It takes 2 people approximately two to three months to complete this effort

24. Sewer Department (cont) Miscellaneous Activities • Empty the rag cans in the Headwork’s building as needed • Empty the Grit Hopper in the Headwork’s building on days that the Sludge container is picked up • Chlorine contact chambers cleaned on a quarterly basis • Clean the splitter box and clarifiers • Building maintenance and improvements • Manhole ring and cover replacements • General grounds keeping at the treatment plant and pump stations • Snow plowing

25. Sewer Department (cont) Goals and Objectives • Collection System Condition Assessment • Vactor Debris Body Dumping Station • 2015 NPDES Permit Renewal application process • Annual cleaning and inspection of sewer and Storm drain collection systems

26. Town Engineer • The Town Engineer Position was originally created in 1992 to provide technical support to the various Town Departments as well as advising the Town Manager on issues ranging from traffic control to environmental compliance. • Today additional responsibilities include effective management of the operation, maintenance, and capital improvements associated with Town Buildings, Technology, Trails, and Miscellaneous Capital Projects

27. Town Buildings • Between the Town and Sewer budgets there are currently 10 locations with 20 structures required to be operated and maintained on an annual basis. • Preventative Maintenance Contract in place for HVAC Systems • Communication system upgraded and updated at the Town Office, Public Works, Treatment Plant, Library, and MTM • MTM Community Center • ADA Ramps and Entrance Doors • Boiler Replacements • Roof Replacement • Window Replacement Project

28. Town Buildings (cont) Goals and Objectives • Joint School and Town Energy Savings Performance Contract • MTM Center Improvements • Library Roof and Insulation • Beaver Park Heating System • Boilers at the Treatment Plant • Solid Waste Department Boiler • Town Office Roof • Treatment Plant Administration Building Roof • Ongoing Library Brick Rehabilitation Project • Replacement of Public Works Salt Shed

29. Technology • In 2001 the Municipal Technology Infrastructure consisted of individual computer terminals with minimal dial up connectivity. • First “network” developed by engineering interns and managed in house with minimal consultant support for several years. • Transitioned to Full Time Employee in 2006 • Server installed and wide area network built to connect Town with Library, Public Works, Fire Stations, and Sewer Department - 2006 • Transitioned to Managed Services Support model in 2008 allowing the Town to outsource all of its IT support • Police Department server and network upgraded in 2013 • Current Municipal servers are at or near end of life and due for replacement, Town should prepare for server upgrade or shift to hosted servers in 2014/2015 fiscal year.

30. Technology (cont) Goals and objectives • Replacement of Municipal Servers • Transition to Thin Client Technology • Replacement of Public use computers at the Library • Ultimately to ensure the Municipal Operation has a highly reliable server infrastructure and secure network capable of providing maximum uptime and enhance employee productivity

31. Trails • Trails Commission Creation - 1999 • Feasibility Study Completed - 2001 • Funding Request Paper Mill Trail - 2001 • Construction Paper Mill Trail Completed - 2004 • Funding Request Ricker Farm Trail - 2002 • Ricker Farm Project Awarded – 2003 • Frost Hill Avenue Application - 2004 • Sabattus River Boat Launch Parking Lot Grant 2006 • Construction Ricker Farm Trail - 2006 • Funding Request Phase II Ricker Farm Trail - 2007 • Ricker Farm Trail Phase II Construction Completion - 2010 • Androscoggin River Trail Feasibility Study - 2008 • Quality Community Programs Application for Androscoggin River Trail - 2008 • Androscoggin River Trail application approved - 2009 • Androscoggin River Trail Design and Permitting Begins – 2010 • Androscoggin River Trail Construction Begins – 2013 • Androscoggin River Trail Construction Completion – August 2014

32. Trails (cont) Goals and objectives • Construct Sidewalk on Davis Street • Planning for additional trail amenities • Determine feasible connections with other communities

33. Summary • The Town of Lisbon, similar to most public and private institutions, is being forced to continuously evaluate and adjust how it functions. As a result, a major focus for Lisbon Public Works in the coming year will be to develop appropriate policies and procedures in order to function as a professional business enterprise operating within the limits of our resources, to repair and maintain the infrastructure entrusted to us and to provide the services necessary to preserve the health and welfare of the Lisbon Community.