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Exhibit #1 <br /> To <br /> Amendment 2 <br /> To <br /> Work Order Number 14 <br /> PROJECT DESCRIPTION <br /> This amendment #2 modifies Work Order # 14 to incorporate the following work at the South RO <br /> water treatment plant: <br /> • Design services for replacement of the existing motor control center MCC-2 , feedwater <br /> pump variable frequency drives (VFD), and the existing 2000 amp automatic transfer <br /> switch (ATS) at the South RO water treatment plant <br /> • Modify drawings and specifications to include additional rehabilitation of the RO trains. <br /> • Conduct an Initial Distribution System Evaluation for Final Stage 2 Disinfectants and <br /> Disinfection Byproducts Rule for water distribution system <br /> Considered to be Phase I of the South RO WTP improvements, a portion of the project has <br /> already been authorized and completed by TLC Diversified, Inc . This work consisted of feed- <br /> water pump upgrades, membrane replacement, train piping modifications, and installation of <br /> profile valves and inter-stage valves. As a result, the remaining work (Phase II), including high <br /> service pump replacement, permeate acid injection point relocation, chemical system <br /> modifications, bulk scale inhibitor tank installation, RO train improvements, MCC-2 replacement, <br /> feedwater pump VFD replacement, and ATS replacement will be advertised for bidding. <br /> These plant improvements will not only provide additional high service pumping capacity and <br /> throughput from the plant, but address some critical rehabilitation and replacement components <br /> need at the South water treatment plant. <br /> Indian River County Utilities (IRCU) water system is subject to EPA ' s Initial Distribution <br /> System Evaluation (IDSE) requirements of the Stage 2 DBPR since chlorine is used as a primary <br /> residual disinfectant and is a community water system that serves > 10,000 people. In order to <br /> comply with the IDSE requirements, there are three options IRCU may qualify for: <br /> • Meet 40/30 Certification requirements <br /> • Conduct a system specific study using existing monitoring results, or water system <br /> hydraulic model <br /> • Conduct standard monitoring <br /> Based on a review of IRCU ' s 2006 annual water quality report (highest TTHM of 114 exceeds 40 <br /> ppb), the fact that only four sites are tested for THM ' s and HAA5 ' s, and the existing water <br /> system hydraulic model has not been calibrated and has not been run in extended period <br /> simulation, the Standard Monitoring Plan should be prepared and submitted to EPA to conduct <br /> standard monitoring per the Schedule 2 requirements . <br /> The following scope of work under this amendment consists of: <br /> S:\044\044572017-SRO Upgrades\Scope\South RO PlantMCC Replacement - Amendment 2 rev 5 .doc Page I <br />