08-28-2017 Council Packet - Laserfiche WebLink

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City of Lino Lakes August 16, 2017 Page 2 K:\Personal\Darin Hyatt\2017 Proposals\GEO\Water Tower Siting - Lino Lakes\Water Tower Siting - Lino Lakes.docx assume liability for repairs for damage caused by our rig to access borings requested in landscaped areas. If a site access requires the use of our ATV track-mounted drilling rig, we will work with City staff to revise the scope. The additional cost to utilize an ATV drilling rig is noted below the table in Section 6. Lump Sum Fee. 2. Bore Hole Locating and Gopher State One Call We understand the proposed bore hole locations will be staked prior to our arrival. Prior to sending a drill rig to the site WSB will contact Gopher State One Call (GSOC) and have them request public underground utility owners mark and clear our proposed bore hole locations of their utilities. If there are private underground utilities that are not located by GSOC, please notify WSB immediately. WSB can set up a private utility locator to mark the site for an additional fee. WSB will take reasonable precautions to avoid underground facilities. 3. Subsurface Test Borings We propose to complete 2 standard penetration test borings to a depth of about 25 feet below existing grade and 1 standard penetration test boring to a depth of about 50 feet at each of the 4 proposed locations. In the standard penetration test borings, we will sample and record blow counts at 2 1/2 foot intervals to the 20-foot depth and then at 5 foot intervals to the boreholes termination depth. If unsuitable soils (soft soils, organic soils, etc…) are encountered at the proposed boring termination depth(s), it will be necessary to extend the borings into more competent materials. This will allow us to better evaluate potential construction issues. An additional charge of $25 per lineal foot will be assessed for borings extended beyond their proposed termination depths. If the added work requires an additional mobilization to the site it will be charged at a rate of $350. In Minnesota, a boring that is 15 feet or deeper must be sealed per Minnesota Well Code. If the boreholes have a depth variation of 25 feet or greater than an additional notification of sealing fee and sealing record will be required. Based on our proposed scope of services, we anticipate the boring depths will be within 25 feet of each other. We will prepare and submit a separate Well Sealing Notification Fee and Well and Boring Sealing Record for each of these projects. 4. Schedule, Bore Hole Samples and Laboratory Testing Based on our current drilling backlog, we anticipate that we can mobilize our truck mounted auger drill to the first site in about 1 to 2 weeks. Laboratory work and report preparation will take about 2 weeks following completion of the field work. It should be noted that this schedule may change based on timing of authorization, site conditions and other factors. Should our anticipated schedule change we will let you know. This estimate is based on work being completed during normal business hours (7am to 6pm), Monday through Friday. Additional charges will apply to night or weekend drilling.