Appendix E Public Hearing Information

Transcription

1 Appendix E Public Hearing Information

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3 0 STATE OF MICHIGAN In the Matter of: Clinton-Oakland Sewage Disposal System State Revolving Fund Project Plan Oakland County Water Resources Commissioner / PUBLIC HEARING Public Works Drive, Waterford, Michigan Wednesday, June,, :00 p.m. APPEARANCES: GREGORY P. KACVINSKY, PE Orchard, Hiltz & McCliment PHIL SANZICA, PE Water Resource Commission TIM PRINCE, PE Water Resource Commission RECORDED BY: Rachel Sunde, CER Certified Electronic Recorder Network Reporting Corporation Firm Registration Number -00--

4 TABLE OF CONTENTS PAGE Opening statement by Mr. Sanzica Presentation by Mr. Kacvinsky Closing statement by Mr. Sanzica

5 0 Waterford, Michigan Wednesday, June, - :0 p.m. MR. SANZICA: Good evening. My name is Philip Sanzica, I'm a chief engineer with the Oakland County Water Resources Commissioner's Office. Tonight is the hearing for the Clinton-Oakland Sewage Disposal System SRF Project plan. It was published in the Oakland Press on May th,. And this is the time and place listed, :00 p.m. on June th, at the Water Resources Commissioner's Office Public Works Drive, Building West, Waterford, Michigan. Tonight Orchard, Hiltz, & McCliment will be presenting the project plan. Greg Kacvinsky of OHM, project manager, will be presenting the project plan. Also in attendance is Tim Prince who is also a chief engineer with the Water Resources Commissioner's Office. And for the record, there is no public here at the meeting. So we will be proposing -- we will be dictating the presentation as Greg states it. So therefore why don't we hand it over to Greg and we'll continue on. MR. KACVINSKY: Thank you, Phil. My name is Greg Kacvinsky, I'm with OHM. We're the consulting engineer who prepared the SRF project plan. And I'll be presenting tonight as required by the Michigan Department of Environmental Quality a public hearing and the presentation of the proposes projects for the Clinton-Oakland Sewage

6 0 Disposal System. This meeting was public noticed more than 0 days ago as required by the MDEQ. And this meeting is a required component of the SRF application process. All comments received in writing or by the public at the public hearing will be addressed either at this meeting or within the project plan document. At this meeting we'll cover the regulatory history that led to this project plan, discuss the project plan summary, and how the costs for the recommended projects will be apportioned to the users in Clinton-Oakland Sewage Disposal system. The benefits of the projects, and the proposed schedule for design and construction of the recommended projects. This project or this project plan came about through correspondence between the WRC and the MDEQ starting in 0 as a result of a sanitary sewer overflow in 0. Between 0 and 0 the WRC and the MDEQ discussed the need for a district compliance agreement to address hydraulic insufficiency in the interceptor. In 0 the WRC signed a district compliance agreement with the MDEQ. And that district compliance agreement set into motion several projects, several tasks that led to this project plan. It started with the master plan in 0 that was completed in January 0 for the Clinton-Oakland system. That master plan identified several hydraulic upgrades to

7 0 the system that would help increase hydraulic capacities and decrease potential for sanitary sewer overflows. There were two bottlenecks identified in the system and the projects we're going to discuss tonight will directly address those bottlenecks. The proposed action plan that was developed by MDEQ and the WRC was agreed upon in 0. Several of those tasks have been completed. The tasks that remain to be completed are developing this SRF project plan, which is what's being covered tonight. And then design and implementation of the projects to address the Clinton-Oakland system. The master plan in 0 for the Clinton-Oakland system identified several bottlenecks along the main interceptor line. One main upstream bottleneck and one downstream bottleneck within the service area. A hydraulic analysis completed as part of that master plan confirmed that several reaches of the Clinton-Oakland interceptor sewer did not have sufficient hydraulic capacity to handle wet weather floss. And so this is a profile, the hydraulic profile of a portion of the system that was identified as having a bottleneck where there is potential for an SSO. The following slides summarize the SRF project plan that was prepared in draft form and discussed tonight. There are two recommended projects, one is on the

8 0 upstream side of the system, the upstream of the system. Which would take flows pumped from the Elizabeth Lake pump station into a. million gallon storage retention tank near the or at the Road Commission of Oakland County facility. The other proposed project, the downstream end of the system or towards the downstream end of the system, is a diversion to the Pontiac Wastewater Treatment Plant at Perry Street in the City of Pontiac. In evaluating upstream projects, we looked at several alternatives to -- several different locations for storage facility. And including diverting, instead of storing the wastewater in a tank, diverting a portion of the flow to the Pontiac wastewater treatment plant from Elizabeth Lake Pump Station. The most cost efficient project was identified as a. million gallon storage tank at the Road Commission of Oakland County property. The reason that project was less expensive than the others is there wasn't the larger land acquisition costs associated with purchase of private property. Putting the tank on public property is more cost efficient. And because it's going on a site that does not require multi use, the tank can be above ground, we can reduce the construction cost of the tank by putting it above and ground instead of below ground. This figure illustrates the proposed forced main

9 0 extension from Elizabeth Lake Pump Station to the proposed Road Commission of Oakland County site where the. million gallon tank would be located. Figure two shows the location of the tank. A 0 foot diameter above ground tank. Water would be pumped in, the wastewater that is, would be pumped in. And the tank would discharge after the storm when the interceptor -- the flows in the interceptor were low enough to accept flows. To summarize the upstream project, the. million gallon tank will accept up to cfs flow, wet weather flow diverted from Elizabeth Lake Pump Station. Would require,00 feet of force main extension from the existing force main to the proposed site, proposed storage tank site. And as I mentioned before, use of public property reduces land acquisition costs. And the above ground tank will reduce excavation and structural costs. We also evaluated the downstream projects to address the downstream hydraulic bottlenecks. Of all the projects that we evaluated, the Perry Street diversion project was the least expensive. We also evaluated storage options and gravity flow options from Perry Street to the Pontiac Wastewater Treatment Plant. This figure illustrates the location and configuration of the diversion from Perry Street to the Pontiac Wastewater Treatment Plant. Consists of approximately two miles of a inch gravity sewer at the upstream end of pump station that diverts water from the

10 0 interceptor. And that sanitary sewer would flow to the Pontiac Wastewater Treatment Plant. 0 percent of the total Clinton-Oakland service area flows would be diverted to the wastewater treatment plant, which is the contractual maximum diversion from DWSD system. And the flow rates would range from cfs during dry weather to up to cfs for future wet weather flows. The following two figures illustrate the proposed pump station location and sanitary sewer. Starting at Galloway Lake Park in the City of Pontiac adjacent to the Clinton-Oakland interceptor. The proposed sanitary sewer would flow south through a railroad right-of-way along the west side of the Silverdome to the existing Auburn plant City of Pontiac Wastewater Treatment. The details on the downstream project, dry weather flow will be approximately cfs. The flow rate during wet weather that will be diverted will be up to cfs. And the pump station would be designed to handle that range of flow rates. The diversion will reduce the flows in the interceptor thereby solving the hydraulic bottleneck at that location. In addition to the upstream and downstream projects, we also evaluated a single project that would address the upstream and downstream hydraulic bottlenecks together. And that is a diversion from the Elizabeth Lake Pump Station to the City of Pontiac Wastewater Treatment

11 0 plant diverting all flows that reach Elizabeth Lake Pump Station. Doing so would alleviate the hydraulic pressures downstream and solve the hydraulic issues identified in the 0 master plan. The main concerns with that is that it would require five miles of force main. It would also require significant upgrades and capital improvements to the Elizabeth Lake Pump Station. And also removing all flows from the system at that point would mean that we'd have a significant length of the interceptor that would have little to no flow that would cause maintenance problems and odor problems. And when we evaluated the cost for this single project alternative it was not cost effective. Comparing the cost of the single project alternative to the sum of the two recommended projects, the total cost was slightly higher for the single project alternative. Therefore we came to the conclusion that the combination of the upstream storage and downstream diversion would be more cost effective and are recommended. The key project schedule started with the draft of the SRF Project Plan that was submitted for public review approximately one month ago. We have a public hearing as required you the MDEQ tonight. We will take any comments received and submit the final project plan including a transcript of tonight's meeting to the MDEQ before the end

12 0 0 of June. The Perry Street diversion, the downstream project will be designed starting this fall. And anticipated construction start date in fall of. The upstream proposed project, the SRT, storage retention tank, at the Road Commission for Oakland County site would likely not be designed and constructed until the -0 range. And that is because there are some continued improvements going on in the communities upstream of that tank that need to be evaluated before the tank can be sized, we can finalize the size for that tank. The combination of the two proposed projects will require an increase in user fees. Because these two projects benefit all communities tributary to the Clinton-Oakland interceptor, we are considering these projects to be common to all in that all communities benefit from reducing the hydraulic restriction on the interceptor. The cost of the two recommended projects together will raise the average annual residential user fee by approximately $. a year. And that's based on a -person household. And that is based on jut the capital improvement cost to construct those two improvements. And operations and maintenance costs of those facilities as well. The key benefits of these projects is that it does address the hydraulic bottlenecks identified in the 0 master plan. And helps reduce the frequency of SSO's. It

13 0 results in compliance with the MDEQ's and WRC's district compliance agreement. And allows the WRC to maintain the schedule on that district compliance agreement. It improves overall system reliability. And there's also a side benefit of reduced -- potential for reduced overall costs because flows are being diverted to the City of Pontiac Wastewater Treatment Plant treating the wastewater closer to home and thereby having an overall economic benefit to the community and all of the users within the Clinton-Oakland system. We are ahead of schedule on developing an SRF project plan, one year ahead of schedule. That's primarily because the WRC was able to work with the City of Pontiac to finalize an agreement to divert wastewater to the City of Pontiac Wastewater Treatment Plant. So these efforts have begun a little bit ahead of schedule. However, it is anticipated that the upstream project, the. million gallon SRT would be designed and constructed on schedule. Are there any questions or comments? MR. SANZICA: This is Philip Sanzica again, from the Water Resources Commissioner's Office. This concludes our public hearing. We will be submitting the project plan to the State MDEQ before the July st deadline. So I'd like to thank Greg for his fine job and we'll conclude the hearing at this time. Thank you.

14 (Meeting concluded at : p.m.)