SANITARY SEWER OVERFLOW INITIATIVE

Transcription

1 SANITARY SEWER OVERFLOW INITIATIVE City of Fort Worth Case Study Presented By Fort Worth Water Department Stacy Walters Bill Lundvall Mary Gugliuzza

2 SANITARY SEWER OVERFLOW INITIATIVE System Overview Regulatory History Fort Worth SSOI Program Public Education

3 Fort Worth System Active Wastewater Accounts = 219,355 Wholesale Wastewater Population Served = 318,519 Collector Mains (Miles) = 3,059 Permitted Wastewater Treatment Capacity (MGD) = 166 Wastewater Treated Daily-Average (MG) = 94.41* * Includes Wholesale Customers

4 Regulatory History 1989 EPA requests Fort Worth s plan to address wet weather overflows in the collection system 1993 EPA issued Administrative Order (AO) 8 years to complete AO requirements 1994 Wet Weather Program (WWP) began 1996 Water Department begins Preventive Maintenance Program for sanitary sewer collection system 2000 EPA closes AO 1 year ahead of schedule Wet Weather Program - $ 215,743,000 Entered SSOI April 2007

5 Fort Worth Program Fort Worth focused on maintenance, renewal, and replacement of deteriorating and capacity challenged infrastructure Fort Worth committed funds for infrastructure rather than penalties Team approach

6 Engineering Field Operations Pretreatment Public Education Regulatory Laboratory Village Creek WRF Team Approach

7 Field Operations Wastewater

8 Wastewater - General Information Wastewater Collection System Operations & Maintenance One Facility 350 Square Miles Service Area 24/7 Operations $19.7M Budget, 184/146 Employees 23 Wholesale Customer Cities Over 1.1 Million Customers

9 NEWWF-2 M350 M289 NEWCF-3 CDSL32T-A-2 NEW M404R M443 M259 M205 NEWCF-1 WS M204 NEWMC M207R M279B-2 NEWWF-1 M293-2 M206S M279B-1 M311 CDSL32T-3 NEWCF-2 M434 M217R M207 CDSL32T-1 M418 M286 M293-1 M405 M207A M277 M272D2 M286 M854 CM279B M134 CDSL32T-2 M219 M206 CDUAL-A M415 M221 M161 M445-2 M189 M269 CM279A M134R CM292C M136R CM279-1 M25II M25I M267A M64 M25 M267-2 MBR M445-1 M64R M180R M267-1 M422 CM279-2 NEWBF-1 M328 M106R M249 CM402A M391A M360 ML7261 M54 M267-3 M1I1-1 M1I1-2 M1I1-A M004 MC1C4B M302S M195AR M42 M216 NEW-2 M216II M270 NEW-3 CM389-3 NEW-1 M263 M275C M34 MD100 M36SR NEW-4 M19 CM244A-2 M131A M863 M340 M39 M21 M181A M7 M36N M296 M36S M195AII M195AI CM389-1 CM289 M321 M347 M355 M292A-B CM389A M231 M308 MFHCIT M X M359 M174 M181AI M166 M295 NEWBF-2 M390 CM402A-A M473 CDUAL-2 M126 M423 M258 M271 M250 CM244A-1 CDUAL-1 M243 M309 M170 M182 M310 M188R ML8540 M815 M349 CM244A-3 M183 M304 M238 M261 CM253A M435 CM244A-B CM285 L8882 M333 CM244A-A Wastewater Collection System 3,059 miles 1 ¼ (Gravity/Force) 9 Major Basins 167 Sub-Basins 53,783 Manholes and junction chambers 14,198 work orders/yr. West Fork Clear Fork CDSL32T-4 Little Fossil Marine Creek Walker Branch M M West Fork CM389-2 NEW-5 Sycamore Creek Village Creek West Fork Big Fossil CM253A-A M813 M814 South Shore West Fork Rush Creek

10 Repeat Offenders Team Effort Easements Clearing Responsive First Responders CCTV Follow-Ups Repairing Problems Recommendations Additional Programs

11 Wastewater Sections 184/ Sections 30 - Sewer Mains 30 - Sewer Taps & Services 13 - Sewer Asset Management (SAM) 37 - Sewer Stops (SERI Sewer Emergency Response Investigators) 36 - Preventative Maintenance (Cleaning and CCTV) Warehouse (Support) 11 - Dispatch (Support) 04 - Earthfill (Support) 07 - Administrative Services (Support) 03 - Training (Support)

12 Sewer Asset Management Maintenance of our large diameter lines Aerial and creek crossings Odor control /corrosion devises Sanitary sewer easements Emergency by-pass pumping support Field investigations Manhole rehabilitation activities Assist neighboring cities, and many other duties.

13 Monitoring Equipment

14 Sewer Stops (First Responders) Respond to customer concerns and complaints First Responder to all sewer system back-ups, flooded homes and businesses due concerning wastewater. Trace out service lateral and locate city side clean outs Routine degrease, root-cut and manhole inspections

15 Preventative Maintenance CCTV Inspection Televise Immediately After Overflow Or Stop Is Controlled Determine Cause

16 Structural Rankings

17 Sewer Mains Repair leaks and breaks In-House replacements Repair, rebuild, replace and adjust existing manholes

18 Sewer Taps & Services Repair, replace/renew and/or adjust existing services (Long and Short Side Services) Install new taps, cleanouts, services and manholes

19 Preventative Maintenance Cleaning Cleaning Clean sewer lines of entire collection system on a pre-defined cycle (At present trying to clean entire system in 10 Year cycle)

20 Collection System Debris

21 Preventative Maintainence Business Plan Goals each Fiscal Year Cleaning Goal 1.5M Linear Feet CCTV Goal 1.5M Linear Feet

22 Root Causes

23 Fort Worth Sanitary Sewer Overflows per 100 Miles of Collection System Piping

24 Hazards Raw sewage Diseases Children, the elderly, and people with suppressed immune systems When SSOs contaminate public places and waters of the U.S

25 Additional Steps Sandbagging all overflows Directing flows in specific areas Posting Caution Signs Avoid citizens, animals, kids, etc. Flow Estimation Chart Calculate overflow rates

26 Flow Estimation Chart

27 Rain Fall Wettest Year Ever Year * May * November

28 Sanitary Sewer Overflow Standard Operating Procedures Sanitary Sewer Overflow (SSO) Response Procedure Introduction (Intent and Responsibilities) Reporting Responsibilities Normal SSO Reporting Procedures Reporting Schedules Internal Procedures and Notification Severe Rain Event Reporting Appendix Notice of Spill from a Wastewater Facility Important Contact Information Water Quality Noncompliance Notification Flow Estimation Chart Public Education Coordinator Process TCEQ Chapter 319

29 Magnificent Seven 1. Wastewater Master Plan 2. Sewer Asset Management 3. First Responders 4. PM / ICAP (Data) 5. Root Eradication 6. Repairs and Renewals (CIP) 7. FOG

30 Team Effort Results 1. Wastewater Master Plan - Future 2. SAM - Clearing and Maintaining Access (Maintaining our easement for access purpose) 3. STOPS - Clearing Blockages (Stops Stopped up lines are potential for SSO in future if not clean) 4. PM / ICAP Cleaning & CCTV Inspection (Condition assessment & evaluating root cause of SSO as well as life expectancy of sewer lines) 5. Root Eradication Eliminate the source of roots 6. SMAIN/SSERV - Fixing Root Causes with repairs or In-House Relay projects 7. Pre-Treatment Services - FOG

31 Motivation Some need more than others!!!

32 Public Outreach

33 Bill inserts Bill messages Booths at events Partner with North Central Texas Council of Governments through FOG initiative

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35 Public Notification

36 Public Notification TAC Chapter General Regulations Incorporated Into Permits Subchapter C: Public Notice Of Spills Or Accidental Discharges From Wastewater Facilities Owned Or Operated By Local Governments Originally Effective - Dec. 30, 1999 Revisions Effective - March 31, 2011

37 ???? Questions????