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HomeMy WebLinkAboutOrdinance No. 01-1274 ORIgINAl. CITY OF THE COLONY, TEXAS om)INANCE NO. Q/-/2/7 AN ORDINANCE OF THE CITY OF THE COLONY, TEXAS, AUTHORIZING THE CITY MANAGER TO ENTER INTO A CONTRACT WITH REED ENGINEERING FOR THE EVALUATION AND TESTING OF TWO PONDS; ATTACHING THE APPROVED FORM OF CONTRACT AS EXHIBIT "A"; AND PROVIDING AN EFFECTIVE DATE BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF THE COLONY, TEXAS: SECTION 1. That the City Manager of the City of The Colony, Texas is hereby authorized to execute on behalf of the City a contract with Reed Engineering for the evaluation and testing of two ponds. The approved form of contract is attached hereto as Exhibit "A", and made a part hereof for such purposes. SECTION 2. This Ordinance shall take effect immediately from and after its passage by the City Council of the City of The Colony, Texas. DULY PASSED AND APPROVED by the City Council of the City of The Colony, Texas this 5~h day of February, 2001. William W. Manning, Mayo~- ATTEST: R~ha~'~ ~)evlin,~epmy City S-ecreta_~ APPROVED AS TO ~ORM: >~don Hikel, {51ty Attorney ' GEOTECHNICAL AND ENVIRONMENTAL CONSULTANTS January 22, 2001 Proposal No. 1-48 City of The Colony Parks and Recreation Department 5151 North Colony Boulevard The Colony, Texas 75056 ATTN: Ms. Pam Nelson POND SEDIMENT EVALUATION SCOUT PARK & LIONS CLUB PARK THE COLONY, TEXAS Dear Ms. Nelson: Submitted here is our proposal to conduct and evaluation of the sediment thickness and evaluate the potential chemical characteristics of the sediment in each of the referenced ponds. This proposal is based on the project discussed on January 19, 2001. Site Description The pond at Scout Park has an approximate surface area of 1.5 acres and the pond at Lions Club Park has a surface area of approximately 1.3 acres. The depth of the ponds are unknown. Scope of Services Reed Engineering Group, Inc. will evaluate the volume of sediment in each pond by surveying the approximate area of the ponds and performing thickness measurements. Thickness measurements will be taken along grid lines from a small boat using a calibrated staff. The boat is to be provided by the City of The Colony. Data will be analyzed and the approximate volume of sediment will be calculated. Given the ages of the ponds, the prior agricultural use of the area, and the current residential land usage, contaminants likely to be present within the sediments include metals, petroleum hydrocarbons, volatile and semi-volatile organic compounds, pesticides, and herbicides. Geotechnical Engineering Environmental Consulting Construction Materials 7~sti*~ 2424 STUTZ DR. · SUITE 400 · DALLAS, Tx 75235 · TEL [214] 350 5600 · FAX [214] 350 00t9 City of The Colony Proposal No. 1-48 January 22, 2001 Page 2 of 4 For sampling purposes, both ponds will be divided into sections based on the number and location of major surface water input points. Discreet samples will be collected from areas adjacent to channel and drain outfalls and the interior of the ponds. The sub-samples will be composited for laboratory analysis. Samples from each pond will be analyzed for EPA Priority Pollutant Scan parameters and for total petroleum hydrocarbons (TPH) and chlorinated herbicides. This sampling and analysis plan is intended to provide a broad and general assessment of the chemical character of the sediment. These analyses may rule out the presence of certain constituents (i.e. chlorinated pesticides and PCB's) but indicate that additional analyses of other parameters (i.e. metals) are warranted to better characterize the in-place sediment. It is Reed's understanding that the ponds will be dredged and the sediments transported to an off-site location for drying and possible re-use. In the event laboratory analyses indicate elevated levels of contaminants requiring disposal of the sediments, Reed can sample the stockpiled sediments at a rate required by the disposal facility, and analyze them for the necessary parameters. Additional stockpile testing can be addressed under a separate proposal. Upon completion of the fieldwork and laboratory analyses, a written report will be issued that provides the findings and conclusions of the evaluation. Three bound copies of the report will be submitted. The work should be completed within approximately 30 days of authorization. Proposed Budget Based on the proposed scope of services, we anticipate a budget of about $11,500.00 to $11,600.00 to complete the Environmental Survey. The maximum budget of $11,600.00 will not be exceeded without prior authorization. Itemized costs associated with the investigation are attached. Unless prior arrangements are agreed to in writing, payment for services is due within 30 calendar days of the invoice date. Payment not received within the 40 calendar days will be charged interest at a rate of 1.0% per month. City of The Colony Proposal No. 1-48 January 22, 2001 Page 3 of 4 Authorization We appreciate the opportunity to present this proposal and look forward to working with you on the project. Authorization to proceed may be indicated by signing and returning one copy of this proposal to our office. If any questions arise, do not hesitate to call. Sincerely, REED ENGINEERING GROUP, INC. Mark D. Schneider Environmental Specialist Elan A. Allen ~m ~. ~ Senior Hydrogeologist . ~ '. Authorized by MDS/EAA/srs copies submitted: (2) / Date City of The Colony Proposal No. 1-48 January 22, 2001 Page 4 of 4 COST ESTIMATE POND SEDIMENT EVALUATION SCOUT PARK & LIONS CLUB PARK THE COLONY, TEXAS Field Services 10 Hours, Field Investigation and Sediment Sampling, Scout Park - Hydrogeologist and Technician $ 1,150.00 10 Hours, GPS Survey Equipment 1,000.00 8 Hours, Field Investigation and Sediment Sampling, Lions Club Park - Hydrogeologist and Technician 920.00 8 Hours, GPS Survey Equipment 800.00 Subtotal, Field $ 3,870.00 Laboratory Analysis 5 EPA Priority Pollutant Scans $ 4,375.00 5 TPH Analyses 330.00 5 Chlorinated Herbicide Analyses 937.50 Subtotal, Laboratory $ 5,642.50 Engineering Analysis and Report 20 Hours, Project Coordination, Data Review and Report Preparation $ 1,300.00 6 Hours, Supervision and Report Preparation - Senior Hydrogeologist 450.00 8 Hours, Drafting and Secretarial Support 280.00 Subtotal, Engineering $ 2,030.00 TOTAL ESTIMATED AMOUNT $11,542.50 Based on the above quantities, the total cost for our services is estimated to be $11,500.00 to $11,600.00. Reed Engineering Group, Inc. reserves the right to vary quantities and types of services, as the project requires. The upper limit budget will not, however, be exceeded without prior written authorization.