PPII Public Outreach Lessons Learned Private Property Infiltration and Inflow Reduction Program. Thomas M. Grisa, P.E.

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2 PPII Public Outreach Lessons Learned Private Property Infiltration and Inflow Reduction Program Thomas M. Grisa, P.E.

3 Meeting Overview Welcome and Introductions Tom Grisa, Director of Public Works Overview of the Problem Tom Grisa What Is Private Property I/I and What Can We Do About It? Andy Lukas, Brown and Caldwell Inspection Process Andy Lukas Questions and Answers

4 Mandatory or Voluntary Program?

5 Outreach Promoting Inspection Introductory Letter sent to each property Public Information Meetings Signage promoting meetings Newsletter articles Webpage on City website Phone calls and conversations at counter More personal letters (four total) Knocking on doors during inspections

6 MMSD Informational Video More videos and information available at

7 Where Does I/I Come From? Private Property Line

8 What the City Program Pays For Sewer Laterals City pays Maximum Reimbursement Inspections 100% N/A Sewer Laterals 75% $8,000 Removal of a Foundation Drain 100% $8,000 Repair to outdoor cleanout pipes 50% $100 Installation of glass blocks in window wells to keep water out 50% $500 Extend roof downspouts away from house foundation Private drainage improvements to keep water away from basements 50% $25 for each downspout extension 50% $8,000 Total property grant funding across all categories $10,000

9 Brookfield s PPII Inspection Process Step 1: Perform internal and external PPII inspection Enter home through convenient pathway to basement Inspect basement drainage plumbing for PPII sources Walk perimeter of house for other PPII sources Note observations on electronic notepad

10 Brookfield s PPII Inspection Process Step 2: Locate and Inspect Private Sewer Lateral Camera inserted from sewer main into lateral Lateral located using sonde attached to camera Dye injected into ground above lateral Camera operator observes dye leaking into lateral through defects

11 Methods of Fixing Leaky Laterals

12 Outreach Promoting Repairs Letters with results, recommendations and eligibility for cost share Phone calls and conversations at counter Inspector on site Residents see work performed at neighbor s house

13 Outreach that Increases Participation Publicize in multiple places, multiple times Provide financial incentive Contact information (ph. # s, addresses) Pound the pavement, knock on doors Talk to people (listen as well) Encourage neighbors to share their story Compare to colonoscopy screening for cancer

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15 Lessons Learned: SSES Inspections Elizabeth Gruell, Brown and Caldwell Tom Nejedlo, AECOM

16 Sewer System Evaluation Survey (SSES) Inspections 1. Home Inspections Internal External 2. Lateral Inspections Connection to the main (dye testing) Lateral itself 3. Smoke Testing 4. Data Management 27

17 Lessons Learned Home Inspections Scheduling difficulties Limited clear water identified Male/female inspection team Contingent internal inspection 28

18 Types of Lateral Inspections Closed Circuit Televising (CCTV) CCTV with Rainfall Simulation Storm Sewer/Ditch Flooding with Dye Dye Injection Soaker Hose Wet Weather CCTV 29

19 Lessons Learned - Rainfall Simulation Difficult to duplicate wet weather Costly Public perception Dye visibility Works well in drought conditions Targeted approach Identify and quantify flow 30

20 Lessons Learned - Wet Weather Actual conditions Difficult to mobilize crews Safety considerations Visibility Submerged camera Uncontrolled environment Size of event Duration Localization 31

21 Overall Lessons Learned Lateral Inspection Lateral camera cable length Lateral alignment and transitions Inflow not always observed at source (ex. roots) Lateral material Existing ground water conditions 32

22 Lessons Learned - Smoke Testing Cost effective Primarily inflow Passive inspection method Not all sources identified Visibility Connected Downspout Missing/Broken cleanout cap Connected stairwell drain 33

23 Lessons Learned Data Management Consider overall objectives Simplicity Consistency Data storage Quality control 34

24 Thank You Elizabeth Gruell Brown and Caldwell Tom Nejedlo AECOM

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26 Private Property I/I Rehabilitation Design Lessons Learned Diane Thoune, P.E., Clark Dietz, Inc. Jerad Wegner, P.E., Ruekert-Mielke, Inc. October 15, 2015

27 Planning Phase Funding MMSD/municipal/private contributions Consult with MMSD regarding broken sewersheds Evaluate system and identify problem areas Perform PPII programs in lined sewersheds

28 Planning Phase Is area metered? Pre vs Post flow comparison Most efficient when properties are all together, i.e. reline all laterals in subdivision Signup should occur prior to start of work Flexibility is required

29 Program Documents Consult with MMSD about requirements/changes Include lateral repair specifications Verify specs meet State plumbing code Addresses may change Include list of addresses and good map Include Contractor s requirements for notifications and traffic control Meet with residents to discuss yard disturbance and program basics, especially program goals

30 Project Execution Notify residents before starting work Questions/issues will come up Quick decisions are important Residents questions are common Only enter homes when necessary Limit disturbance of permanent features Know the restoration plan Residents appreciate the program Compare pre- and post-lining metering results

31 Design Issues/Solutions Lack of resident sign-ups, late sign-ups Specification of preferred materials

32 Questions? Diane Thoune, P.E. Jerad Wegner, P.E. Phone:

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34 Private Property I/I Rehabilitation Lessons Learned Nick Nadelhoffer North Shore Engineering, Inc Joseph Tew City of Brookfield

35 Pre-Project Preparations Data Gathering Data Handling

36 Preparing Specifications Specifications Plan for the known items Plan for the unknowns» How will these be handled?

37 Preconstruction Meeting Schedule Discuss any deviations from the specifications

38 Field Work Communication with the residents Field Documentation Field surprises and best practices Communication with appropriate agencies Flexibility Maintain communication with residents & Municipality

39 Post Construction Data Handling Preparation of field notes As built data documentation Identify and explain unique field situations Project report submittals

40 Networking Break