Presented toThe City ofSt. PetersburgPresented by

St. Petersburg is a leader in progressive management of water resourcesThe City is the only utility in the Tampa Bay area that has abandoned SW dischargeOur team is proud to be associated with this accomplishment since inception706050403020100

The deep injection system provides the wet weather management option to avoid discharges0100200300400500600700800900100011001200Depth Below Pad Surface (feet)Albert Whitted WRF(Plant No. 1)Northeast WRF(Plant No. 2)Northwest WRF(Plant No. 3)Southwest WRF(Plant No. 4)1986198519781976Approximate Extent of UndergroundSources of Drinking Water (USDWS)Aquiclude

CH2M HILL Teams unmatched experience and expertise will assure success of DIW permitting28 years of experience with Citys DIW systemIntimately familiar with workings of each of ten injection wellsOnly firm to advance re-classification of injection wells from Class I to Class V (City of St. Petersburg and Miami-Dade County)Unparalleled technical/expert witness expertise to support permitting challenges

Injection well program history past, present, and future1976DIWsconstructedFDEP:Water quality changesnot OKAnnualReportsWellinventory/risk assessmentcompletedREWARD& ASR wellsconstructedConsentOrdersexpireZODapplicationssubmittedInternal RTSdevelopmentClass VpermitapplicationssubmittedSolutetransportmodelsASR permitreceivedWell inventoryupdatedApplications deemed complete by FDEP;SWFWMDfunding received1991199319871997199920012005198519891995198619881992199819962002199019942000200419831984MITAcidizationCH2MHILL involved with all aspects of program since Day 1ASR permitrenewedEPA hands off Class V permits to FDEP

Your successful consultant must provide:A defined strategy for long-term complianceInnovative approaches for protecting DIW capacity into the futureDemonstrated cost savings that you can pass on to your customers

Your successful consultant must provide:A defined strategy for long-term complianceInnovative approaches for protecting DIW capacity into the futureDemonstrated cost savings that you can pass on to your customers

Well reclassification assures long-term compliance and is in Citys best interestWell abandonment/AWT Conversion- Pinellas Co.Federal rulemaking - EPAAquifer exemption - Miami-Dade County and Seacoast UtilitiesAquifer reclassification and injection zone redefined - Southeast Florida Utilities

The race isnt over but the last hurdles in sight

ZODs to mitigate short-term salinity increases1997The race isnt over but the last hurdles in sight

ZODs to mitigate short-term salinity increases1997FDEP deems Class V permits complete1998The race isnt over but the last hurdles in sight

ZODs to mitigate short-term salinity increases1997FDEP deems Class V permits complete1998EPA notifies FDEP that they will not interfere2003The race isnt over but the last hurdles in sight

RegulatoryCompliance2005ZODs to mitigate short-term salinity increases1997FDEP deems Class V permits complete1998EPA notifies FDEP that they will not interfere2003The race isnt over but the last hurdles in sight2004 - Class V Permits should be issuedFeb 2005 - Consent orders expire

We can assure the City clears this last permitting hurdleRegulatory climate and alignment are rightOur team has: Clear understanding of Citys unique situation that lends itself well to permitting successUnmatched experience in Class V permitting and expert witness supportProven track record of successful permit condition negotiation

St. Petersburg/CH2M HILL regulatory strategy has set the stage for successCity has demonstrated great patience with FDEPPolitically savvy approach will benefit other communities as wellExcitement is in the air City, FDEP and finally EPA now appear to be alignedNext steps: receive draft permitnegotiate permit conditionsfinalize Class V permit and implement conditions

St. Petersburgs unique situation provides the key to defense of continued DIW operationSurface water discharge is detrimental, regardless of level of treatmentUnique geology, with no potable water supplies underlying the CityInjected water is of very high quality, meeting most drinking water standardsAmong largest urban reuse systems worldwide; DIWs provide the necessary wet weather backup Ongoing projects to further expand reuse are directly linked to continued DIW operation

CH2M HILL - Super bowl team to successfully defend against any well permit challengesDr. Garcia - Decades of expert witness involvement in water resources issuesJeff Lehnen - Expert witness on numerous deep injection well hearingsMark McNeal - Has worked closely with City legal staff and counsel over past 10 yearsJames Dwyer - Has used solute transport modeling to successfully defend reclaimed water ASR

Northport; Manatee County; Key LargoManatee County; Stone ContainerSarasota CountySarasota County

Our knowledge of issues and system help navigate challenges associated with new permit conditionsUse modeling results to justify limited numberNegotiate out - not neededNegotiate appropriate monitoring regime; meeting regulatory needs while minimizing costsAlready done, or performed regularlyAdditional reporting, modeling & risk assessment

Your successful consultant must provide:A defined strategy for long-term complianceInnovative approaches for protecting DIW capacity into the futureDemonstrated cost savings that you can pass on to your customers

Our innovative approach to well O&M has resulted in considerable savings to the City, while also protecting long-term DIW capacityPAST: Periodic acidizationCH2M HILL pioneered this application with St. PetersburgStill the best method for capacityDOUBLE- CLICK TO RUN

Our innovative approach to well O&M has resulted in considerable savings to the City, while also protecting long-term DIW capacityPAST: Periodic acidizationCH2M HILL pioneered this application with St. PetersburgStill the best method for capacityPRESENT: Backflushing & acidizationsCH2M HILL pioneered this technique with St. PetersburgCan increase capacity as much as acidization

Our innovative approach to well O&M has resulted in considerable savings to the City, while also protecting long-term DIW capacityPAST: Periodic acidizationCH2M HILL pioneered this application with St. PetersburgStill the best method for capacityPRESENT: Backflushing & acidizationsCH2M HILL pioneered this technique with St. PetersburgCan increase capacity as much as acidizationFUTURE: CO2 and periodic backflushingPilot testing will confirm effectiveness of this lower-cost option

Our strategy includes innovative negotiation of permit conditions to address decline of DIW capacities over time

ASR will help the City avoid surface water discharges to maintain compliance122117112107102979220052025102DIW + ASR capacityDIW capacity2 mgd5 mgd10 mgd15 mgd20 mgdReplace disposal capacity with storage capacityASR

Your successful consultant must provide:A defined strategy for long-term complianceInnovative approaches for protecting DIW capacity into the futureDemonstrated cost savings that you can pass on to your customers

Continued deep well injection has financially benefited the Citys wastewater customersCost of AWT at all four WRFs = $100 million plusCost of deep injection well classification over 12 years + $1.1 millionvs.

Our cost-saving strategies have worked to the Citys direct - and substantial - benefitNew technique for mechanical integrity testingCooperative funding from SWFWMDAnnual report consolidationBackflushing technique to defer acidization

Consolidation of Citys proactive annual injection reports saves more than $65,000 per year - and provides a total system evaluation

Using RTS technology for MI testing lowers cost and reduces down-timeRTSPacker Tests$400,000 Savings every 5 Years!

CH2MHILL has successfully helped the City obtain SWFWMD fundingREWARD WellASR Well

Acidization and backflushing have also provided considerable savingsAcidization: Each well every 5 years With backflushing: Now every 7 yearsAcidization cost = $100k/well = $200k/yearWith Backflushing $400k saved each 7-year period

Our team will continue to recommend project approaches that will benefit the Citys rate payersSavings estimated at $300,000 per year among these four cost-saving measures aloneWe have adopted the Citys priorities as our own and will remain forward thinking Reliability will not be compromised to achieve this goal

Today we have demonstrated that CH2M HILL will provide:A defined strategy for long-term complianceExperience in reclassification to Class V Experience in responding to permit challengesInnovative approaches for protecting DIW capacity into the futureDemonstrated cost savings that you can pass on to your customersCommitment and dedication of our Staff to the City

Presented toThe City ofSt. PetersburgPresented byMay 26, 2004

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