Historic Bristol Borough. Wastewater treatment facilities upgrade & improvement program:

Transcription

1 Historic Bristol Borough Wastewater treatment facilities upgrade & improvement program:

2 Project Summary 2 of the original 10 projects identified in 2012 have been completed (Lakeland PS, WWTP Control Building). 2 of the original 10 projects have been completed but additional needed upgrades have been identified (Anaerobic Digesters, Harriman PS). 5 Priority 1 and 2 projects identified in 2012 are still outstanding. 5 new Priority 1 and 2 projects have been identified since The Maple Beach Road Bridge project, listed for Pennvest funding, has not been factored into any current budget estimates, as it has been moved to below priority 3 status. Estimated costs for all outstanding projects: $4,337,000 Remaining funding need: ($3,215,000) 2

3 BRISTOL BOROUGH WATER & SEWER AUTHORITY CURRENT FUNDING NEEDS FOR PLANNED CAPITAL PROJECTS Client: Bristol Borough Water & Sewer Authority Project Number: Project Name: BBWSA Capital Program Last Revised: December 3, 2015 Penn Works No. Priority Project Name Project Description 13 1 Anaerobic Digesters Add vortex mixing system, gas leak detection system, valves & cover level sensors; continue sealing of concrete tankage Budget from Existing Funding (3) Current Estimated Project Cost (2) Funding Needs Presentation Page Number UNFUNDED $290, ($290,000.00) WWTP Control Building Rehab Replace/Refurbish control building structure UNFUNDED $1,248, ($1,248,000.00) Relocate Route 13 Interceptor at Bath Road 23 2 Pond Street Pump Station Relocate interceptor due to PennDOT road improvements (1) Convert from suction lift station to submersible pumps & controls; add flow meter UNFUNDED $119, ($119,000.00) UNFUNDED $350, ($350,000.00) Main Pump Station Genset Replace 40 year old generator UNFUNDED $80, ($80,000.00) WWTP Genset Replace 40 year old generator UNFUNDED $220, ($220,000.00) A 1 Harriman PS Genset Replace 40 year old generator UNFUNDED $50, ($50,000.00) 24 B 2 Rotating Biological Contactors Replace failed RBC units UNFUNDED $750, ($750,000.00) C 1 Main Pump Station Bar Screen Replace climbing screen & enclosure UNFUNDED $390, ($390,000.00) D 2 Clarifiers Replace center drives in all 4 clarifiers UNFUNDED $150, ($150,000.00) E 1 Pump Building Ventilation Systems Update ventilation systems in all 3 internal pump stations UNFUNDED $60, ($60,000.00) F 2 Trickling Filter Wall Repair Repair failing walls around trickling filters UNFUNDED $630, ($630,000.00) TOTAL OF ALL PROJECTS: $4,337, ($4,337,000.00) REMAINING PENNVEST FUNDS: $1,122, REQUIRED FINANCING: ($3,215,000.00) 3

4 #13-Anaerobic Digesters Original upgrades identified in 2012 have been completed. Currently, additional upgrades outside the original project scope are required at this facility. Estimated cost of these outstanding upgrades is $290,000. These include: addition of a vortex mixing system to the primary digester, addition of upper and lower level gas leak detection systems, process valve and cover level senor upgrades, and continued sealing of concrete tank. 4

5 Anaerobic Digester: Current Mixing System This is our current Perth Gas Mixing System. The systems are obsolete and being replaced with more modern Vortex Mixing systems 5

6 All measurement Anaerobic units Digesters shown have NOT WORKED since the 1980 s Lack of proper equipment results in more time needed by the staff for daily measurements 6

7 Anaerobic Digester Level Sensing Device Anaerobic Digesters Shows current floating roof height based on volume of digesting sludge inside Has not been functional since the 1980 s 7

8 #16-Wastewater Treatment Plant (WWTP) Control Building Replacement of the external structure and roof have been completed. 8

9 New Roof of the Control Building: 2015 Anaerobic Digesters 9

10 Anaerobic Digesters Control Building Exterior: 2015 Aluminum siding has been completely removed, and new cinder block walls and modern windows and doors have been installed. 10

11 WWTP Control Building Upgrades to control building structure costs: Final Project Cost: $1,248,000 11

12 #18-Rt. 13 Interceptor Original interceptor installed when housing in the area was developed. Features a 15 sewer main made of Terra cotta. Flows through swamp and wetlands. Parts of the main have been compromised, resulting in this interceptor being a major source of infiltration in the system. As of 2015, this main has been identified as needing partial replacement and partial lining, and also a relocation in the area of Rt. 13 and Bath Road. During the PENNDOT Rt. 13 rehabilitation project, which began in 2014, part of this interceptor was relocated, as it was found to be in PENNDOT s planned retention basin. 12

13 Rt. 13 Interceptor This project has been moved to a priority 3 status, but the Authority's share of the portion relocated due to PennDOT must be funded Estimated funding need for this project: ($119,000) 13

14 #23-Pond Street Pump Station No upgrades or renovations have been done to this facility in over 25 years. Similar issues to that of the Lakeland Ave. Pumping Station. With upgrades, any new development in that area will be able to be added to the system without question to flow and overall station capacity. 14

15 Pond Street Pump Station Upgrades would update the outdoor controls & eliminate service in the Dry Well 15

16 Pond Street Pump Station Discharge valves have become inoperable and is at the end of its effective lifecycle 16

17 Pond Street Pump Station To be completed: Convert from dry pit lift station to submersible pumps & controls; add flow meter and emergency generator. Budget from Existing Funding: UNFUNDED 2015 Estimated Project Cost: $350,000 Remaining funding need for this project: ($350,000) 17

18 #26 & #27-WWTP & Main Pump Station Generators Both generators (gensets) are currently diesel powered equipment installed in In an emergency, these gensets supply power to keep the plant and main pumping station in operation while a power outage occurs and do so until power is restored. Newer equipment would be both more environmentally friendly as well as increase the overall efficiency and reliability when an emergency occurs. 18

19 Plant Generator Facility operates at least weekly to ensure reliability 19

20 Plant Generator Paul Yezzie explains to Authority officials the existing issues at this generator, including extensive corrosion and wear. 20

21 WWTP Generator Need for a complete replacement. Budget from Existing Funding: UNFUNDED 2015 Estimated Project Cost: $220,000 Remaining funding need for this projects: ($220,000) 21

22 Main Pump Station Generator This is the original generator and control panel that was installed in 1976 and reliability is in question 22

23 Main Pump Station Generator Need for a complete replacement. Budget from Existing Funding: UNFUNDED 2015 Estimated Project Cost: $80,000 Remaining funding need for this project: ($80,000) 23

24 #A-Harriman Pump Station Pump station has been upgraded, including replacement of corroded structures, piping & valves and addition of flow meter. Station is still in need of a generator, as current unit is roughly 40 years old. This upgrade is currently a priority 1 status Estimated funding need for this project: ($50,000) 24

25 Original and Continuing Projects (Priorities 1 & 2) & Funding Needs: $2,357,000 #13-Anaerobic Digesters Added Upgrades #16-WWTP Control Building Rehab #18-Route 13 Interceptor Rehab (PennDOT portion) #23-Pond Street Pump Station #26-Main Pump Station Genset #27-WWTP Genset #A-Harriman Pump Station Genset $ 290,000 $1,248,000 $ 119,000 $ 350,000 $ 80,000 $ 220,000 $ 50,000 25

26 New Projects as of 2015 Since the original review of the wastewater system in 2012, 6 additional projects have been identified as being of a priority 1 or 2 status. These projects are currently all UNFUNDED as of June

27 #B-Rotating Biological Contactors Housed in the main control building, these units are second stage to the plant s secondary treatment. The facility features 6 of these units, in total, however 2 units have been non-functional since All 6 of these units were originally installed in Since the original installations, repairs to these units has been extensive, however, the 2 units currently out of service are beyond repair and in need of replacement. 27

28 Rotating Biological Contactors Broken in the middle of the unit 28

29 Rotating Biological Contactors This should be a straight shaft, but is broken. 29

30 Rotating Biological Contactors Currently a priority 2 project 2015 Budget from Existing Funding: UNFUNDED 2015 Est. Project Cost: $750,000 Remaining funding need for this project: ($750,000) 30

31 #C-Main Pump Station Bar Screen Rag Rake Located at the Borough s Main Pumping Station. This unit was installed in 1976, and is in use 24/7. The bar screen rag rake system is the first unit in the wastewater treatment process. Its purpose is to protect the main pumps from large debris. Manual raking must take place by Borough staff if, at any time, this unit is inoperable. 31

32 Main Pump Station Bar Screen Rag Rake 32

33 Main Pump Station Bar Screen Rag Rake 33

34 Main Pump Station Bar Screen Rag Rake Attached & Functional Spring Arm BROKEN Spring Arm 34

35 Main Pump Station Bar Screen Rag Rake Currently a priority 1 project 2015 Budget from Existing Funding: UNFUNDED 2015 Est. Project Cost: $390,000 Remaining funding need for this project: ($390,000) 35

36 #D-WWTP Primary & Secondary Clarifier Drives Located at the Borough s Wastewater Treatment Plant. All 4 units were installed in 1976 and are used 24/7. The primary clarifiers remove floating and settleable solids found early in the wastewater treatment process. Secondary clarifiers act as additional clarifiers, but are placed after the secondary treatment process. These units act to provide a buffer and flow regulator to the overall wastewater treatment process, and lessen the organic loading on the biological process. 36

37 Primary & Secondary Clarifiers Electric motor & drive unit 37

38 Primary & Secondary Clarifiers Electric motor Clarifier Drive 38

39 WWTP Primary & Secondary Clarifiers Currently a priority 2 project 2015 Budget from Existing Funding: UNFUNDED 2015 Est. Project Cost: $150,000 Remaining funding need for this project: ($150,000) 39

40 #E-Pump Building Ventilation Systems Located at the Borough s Wastewater Treatment Plant. Three of the buildings at the plant require positive ventilation assistance. This new standard, Positive Input Ventilation (PIV), will create safer working conditions for all Borough staff. Using a PIV system helps to eliminate any toxic or negative atmospheres located inside each of these buildings. Updating these systems was a recommendation of the Borough s insurance provider. 40

41 Pump Building Ventilation System Electric motor Clarifier Drive 41

42 Pump Building Ventilation System Electric motor Clarifier Drive 42

43 Pump Building Ventilation System Electric motor Clarifier Drive 43

44 Pump Bldg. Ventilation Systems Currently a priority 1 project 2015 Budget from Existing Funding: UNFUNDED 2015 Est. Project Cost: $60,000 Remaining funding need for this project: ($60,000) 44

45 #F-Trickling Filter Wall Repair Located at the Borough s Wastewater Treatment Plant. The trickling filter is the main part of the wastewater treatment process, and involves many tons of rock media. The fist-sized rock media is contained by these walls. These trickling filters were originally installed sometime prior to 1976, as they were part of the original wastewater treatment plant. The walls were not included in the 1976 overhaul of the Borough s wastewater treatment plant. Several areas have been identified as compromised. 45

46 Trickling Filter Wall Repair Electric motor Clarifier Drive This section of wall is roughly 12 feet high 46

47 Trickling Filter Wall Repair Electric motor Clarifier Drive Erosion of the wall begins from the ground up 47

48 Trickling Filter Wall Repair Electric motor Clarifier Drive 48

49 Trickling Filter Wall Repair 49

50 Trickling Filter Wall Repair Currently a priority 2 project 2015 Budget from Existing Funding: UNFUNDED 2015 Est. Project Cost: $630,000 Remaining funding need for this project: ($630,000) 50

51 New Projects (Priorities 1 & 2) & Funding Needs: $1,980,000 #B-Rotating Biological Contactors #C-Main Pump Bar Screen Rag Rake #D-WWTP Pri. & Sec. Clarifiers #E-Pump Bldg. Ventilation Systems #F-Trickling Filter Wall Repair $750,000 $390,000 $150,000 $ 60,000 $630,000 51