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CHANGE ORDER NO. ONE TO CONTRACT NO. K-1213-92: BY AND BETWEEN THE NORMAN UTILITIES AUTHORITY AND MATTHEWS TRENCHING COMPANY, INC., DECREASING THE CONTRACT AMOUNT BY $44,016 FOR A REVISED CONTRACT AMOUNT OF $1,212,208.50; EXTENDING THE CONTRACT BY 69 CALENDAR DAYS FOR THE HIGH PRESSURE PLANE WATER LINE IMPROVEMENTS; AND FINAL ACCEPTANCE OF THE PROJECT.
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BACKGROUND: The High Pressure Plane Waterline Improvements projects (projects WA0131 and WB0131) installed waterline to serve the southern and northern areas of the high pressure plane (HPP). The improvements will provide a more sustainable water pressure with less pressure fluctuation during periods of peak demand.
Professional Engineering Consultants (PEC) was hired to perform design and modeling services under Contract K-0607-122. PEC also provided geotechnical exploration, surveying and limited construction administrative services during construction of the HPP improvements. The Oklahoma Department of Environmental Quality (ODEQ) approved the design plans on February 7, 2013.
The HPP Waterline Improvements include approximately 3,200 feet of 24-inch waterline between the Water Treatment Plant (WTP) and 24th Avenue NE, and 5,900 feet of 16-inch waterline along Robinson between the WTP and 36th Avenue NE, and then south to Alameda (see map). The 16-inch waterline provides a second feed to the southern portion of the HPP (Alameda Plaza, Meadowwood Estates, Summit Lakes, and Royal Oaks subdivisions). The 24-inch waterline feeds the northern portion of the HPP (Deerfield, Hall Park, Hallbrooke, High Meadows, Lakecrest, Park Hill, Park Place, Queenston, Shawdowlake and Sonoma Park).
The advertisement for bids was published in the Norman Transcript and bids were received from six contractors on February 21, 2013. Matthews Trenching Company, Inc. (Matthews) of Oklahoma City was the low bidder at $1,256,224.50. On March 12, 2013, the Norman Utilities Authority (NUA) authorized award and ap...
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