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131/022499 -0016 <br />9316490.1 <br />maintenance, and operation of the Project. City shall approve all construction <br />plans prior to commencement of construction, which approval shall not be <br />unreasonably withheld. Well maintenance may include reconstruction, <br />redevelopment, reftnrbishing, removal and replacement, inspection, and. taking of <br />water samples. It is anticipated that the well will require redeveloping or <br />refurbishing once every five (5) years; however, due to the nature of water wells, <br />District reserves the right to reasonably determine when the use of such <br />maintenance activities is necessary which may be less than every five (5) years. <br />District shall notify City at least 60 days in advance of maintenance activities that <br />will utilize heavy equipment such as a well develop /pump rig. It is anticipated <br />that 14 parking stalls will be taken out of service for 2 weeks during maintenance <br />of each well. City reserves the right to inspect and require that the area impacted <br />by the well maintenance and redevelopment work is restored to its original <br />condition or better, to the satisfaction of the City, at the conclusion of the work, <br />1.1.2.2 Temroorary Construction Areas. Exhibit 3, attached hereto and <br />incorporated herein by this reference, depicts the approximate locations of the <br />Temporary Well Construction Areas, whieh permit District to occupy and use <br />approximately 12,000- 15,000 square feet of temporary work area at each injection <br />well for approximately 3 months during the construction period of the Project to <br />accommodate drilling and well development, followed by Licensee's use of an <br />approximate 3,000 square foot temporary work area at each injection well for 3 <br />months to equip the well, During well drilling, development, and construction <br />temporary sound mitigators shall be installed around the work areas to reduce <br />noise generated by such activities. Portions of the well and pipeline construction <br />will require active construction work over several 24 hour days. The District shall <br />have the right to use temporary work areas along the alignments of Project shown <br />in Exhibit 2. <br />1.1.13 Injection Well Locations. District shall construct each injection well <br />below grade within vaults that have access hatches centered within existing <br />parking stalls. An additional access hatch for personnel entry will be located <br />nearby to allow emergency access into the well vault if a car is parked above the <br />primary access hatch. City shall not authorize loads in excess of 16,000 lbs. to be <br />placed on or over the well vault locations. <br />1.1.2,4 Backflus'h into Centennial Lake. When mutually feasible, City and <br />District agreo to use well backflush water to replenish Centennial Lake water <br />losses as a water conservation measure. District shall backflusb the injection <br />wells into the existing Centennial Lake's wet well air -gap structure as a primary <br />discharge outlet and to the Greenville Banning channel via City's existing storm <br />drain system as a secondary discharge outlet. District shall coordinate with City <br />at least 24 hours prior to any discharge to Centennial Lake by District. District's <br />discharge of backflush water into the Centennial Lake shall not cause the <br />Centennial Lake's water level to rise Co an elevation of over (ow into the existing <br />spillway structure. District shall not be held responsible for events not directly <br />related to District's discharge that may cause an overflow, such as City's <br />-2- <br />25C -6 <br />