Site work for a water / sewer project in Topeka, Kansas. Completed plans call for site work for a water / sewer project.

Questions/Addenda: Questions requesting clarification of the bid must be submitted in writing to the Procurement Officer indicated above: Before the end of the day, on Thursday, December 4, 2025 ACKGROUND AND SCOPE Groundwater in the area that is used for domestic, livestock, and oilfield water supply is produced from an eastern prong of the High Planes Aquifer (HPA) in Lane County. The saturated thickness of the HPA is relatively thin in the area; Water wells are generally in the range of 80 - 100 feet deep, static water levels are typically 60 - 90 feet below land surface, and the saturated thickness of the aquifer is around 15 - 20 feet based on water well completion records (KGS WWC5 online database). The natural ground water quality in the HPA in the area is expected to be fresh based on a past survey of irrigation water in Lane County is a part of a KGS study. The chloride concentration range in the county was 16 - 69mg/L and the average was 28mg/L. All of the wells sampled had a sulfate concentration greater than chloride concentration. The bedrock underlying the HPA is comprised of Upper Cretaceous shales and limestones. Groundwater in the Upper Dakota aquifer that underlies the Upper Cretaceous strata in the general area of the study has chloride and sulfate concentrations of about 100 - 300 mg/L and 40 - 200mg/L, respectively, based on well water data. This work scope is necessary for data collection in the local aquifer, helping develop a better understanding of the hydrological model regarding the current and possible future conditions of the High Plans Aquifer. There are two suspect wells in the area that could be the cause of the brine, the Anderson #1 and the Foster #1. Both wells are located close to the same draw that runs to the wells downstream with elevated chlorides. Anderson #1 was plugged in 1985 with the following plugs: 2,100 feet with 50 sacks cement, 1,050 feet with 70 sacks cement, 390 feet with 40 sacks cement, 40 feet with 100 sacks cement, hulls, and solid bridge. Foster #1 was plugged in 1972 with the following plugs: 975 - 650 feet, 375 - 300 feet, 40 - 0 feet Location- This section of the Lane County HPA is a box of approximately one-half township in size. The boundaries are one (1) mile to the north, one (1) mile to the west, four (4) miles to the east, and two (2) miles to the south of Pendennis, Kansas. The HPA is in multiple sections of T16 & 17-S and R-27-W in Lane County. This area is located in the Niobrara Chalk aquifer area, and water usage for private, public, agricultural, and commercial means is abundant within the surrounding area. The Vendor is responsible for ensuring that any work performed under this Request for Proposal (RFP) complies with all Federal, State, and local laws. The Vendor may modify the work scope but notify and justify any changes with the Kansas Corporation Commission (KCC) District 1 Office in writing before work commences. The KCC can approve or reject any proposed changes to the scope of work. The KCC plans to drill approximately 5 monitoring wells around the High Plans Aquafer area. The KCC reserves the right to drill an additional 3 monitoring wells at the agreed cost for well installation in this project if deemed necessary. Location of the wells will be one up gradient, one at the presumed source, and three down gradients. The locations of these monitoring wells will be agreed upon by the KCC District 1 Office and the hired contractor. Wells will be drilled to a depth of TBD feet and screened between TBD feet. ______________________________________________________________ Monitoring Well Drilling and Installation - General The contractor shall have a valid and current water well drilling license issued by the State of Kansas. The contractor shall furnish all necessary supervision, labor, tools, materials, and equipment, except as may be noted, to properly drill and construct groundwater observation wells. The Vendor's Field Geologist shall oversee each location. The field geologist shall log each boring to the full extent possible. Once the contract is complete, field notes and lithology logs shall be provided to the KCC. The Field Geologist shall keep the KCC geologists/ District staff updated on all drilling activities and completion operations. KCC geologists can make all final calls regarding any drilling or completion decisions. The contractor shall protect any adjacent equipment, drainage ditches, pavements, crops, fences, above and below ground utility lines, and any other site work liable to damage from the execution of this work. Repair of damaged areas shall be made as approved by the KCC District 1 Office at the contractor's expense. The contractor shall notify the KCC District 1 Office a minimum of 72 hours before drilling operations begin to allow District staff to witness the drilling and well completion. Monitoring Well Drilling and Installation - Site Preparations The contractor or a representative of the contractor shall identify or locate above and below-ground utilities. The contractor shall be responsible for all one call utility locates and provide KCC with all ticket numbers. Subject to the approval of the site geologist, the staked observation well location may be moved for safety reasons or to avoid property or equipment damage. When the use of wooden or steel planking does not provide rig stabilization, rough grading, cutting and filling shall be permitted for drilling rig stabilization. The contractor shall erect and maintain guardrails, lights, temporary enclosures, or other equipment as required to safeguard the public. ______________________________________________________________ Monitoring Well Drilling and Installation - Drilling Pursuant to K.S.A. 82a-1201 through 82a-1215 and amendments thereto, all drilling shall comply with the Kansas Department of Health and Environment Article 30 (Water Well Contractor's License; Water Well Construction and Abandonment). The Field Geologist shall carefully log all wells, so samples during drilling must be obtained at a minimum of 5 feet intervals. Continuous sampling may occur in the lower part of the aquifer, where brine contamination is highest or at depths requiring detailed review. The Field Geologist may also stop drilling at any time to circulate drilling fluids to obtain better samples. Samples should be laid out on the ground or other locations in chronological order to record the lithology during the drilling. There is no lab analysis planned, so no samples shall need to be containerized. The Field Geologist shall evaluate, describe, and record lithology and other hydrological or geological observations of each sample. Other than the rotary wash technique, any drilling methods must be cleared and justified with the KCC District 1 Office before work commences. The minimum diameter of the borehole shall be six inches from ground level to total depth (TD). A portable above-ground drill tank or pit shall be used to circulate drilling fluid and contain drill cuttings Before setting the casing in the borehole, TD shall be "tagged" or measured to determine borehole depth. As determined by the site geologist, any portion of the borehole that penetrates greater than five feet into bedrock shall be plugged back to the observation well's TD Any borehole that is not completed due to unforeseen circumstances shall be plugged from TD to ground level. It is the full responsibility of the vendor to evaluate the site-specific geology and other information to determine the equipment needed for successful installation. Monitoring Well Drilling and Installation - Well Construction Pursuant to K.S.A. 82a-1201 through 82a-1215 and amendments thereto, well construction shall comply with the Kansas Department of Health and Environment Article 30 (Water Well Contractor's License; Water Well Construction and Abandonment). The Vendor's Field Geologist shall be onsite to oversee all completions. All materials used in constructing each well shall be properly prepared and installed according to manufacturers' specifications. A two (2) inch PVC, schedule 40, and slip cap shall be glued to the bottom end of the screen before screen installation. A 10-foot section or joint of two-inch diameter, PVC, schedule 40, slip joint, screen with 0.010 openings shall be set at TD. The Field Geologist may change screen lengths in the field based on the geologic logging of each well. Two (2) inch diameter, PVC, schedule 40, bell joint, well casing shall be installed from the screen to seven (7) feet below land surface. A two (2) inch diameter, PVC, schedule 40, threaded and slip end, female adapter shall be installed on the PVC well casing. The slip end shall be installed on the PVC well casing using glue and two (2) galvanized screws that do not penetrate the inside surface of the well casing when tightened. A prefabricated two (2) inch diameter galvanized casing consisting of two (2) threaded, five (5) foot sections shall be installed. A non-toxic thread sealing compound shall be used on the threaded joints. A two (2) inch diameter, PVC, schedule 40, threaded cap shall be installed, without thread sealing compound, on the well casing opening. A 1/8-inch diameter vent hole shall be drilled through the side of the cap. A four (4) inch steel bollard shall protect the completed observation well battery on each side of the battery that is buried and cemented a minimum of three (3) feet and rises a minimum of three (3) feet above ground level. The bollards shall be painted bright yellow for easy visual identification and filled with concrete. ______________________________________________________________ Monitoring Well Drilling and Installation - Gravel Pack Pursuant to K.S.A. 82a-1201 through 82a-1215 and amendments thereto, installation of the gravel pack shall comply with the Kansas Department of Health and Environment Article 30 (Water Well Contractor's License; Water Well Construction and Abandonment). Immediately after the well screen and casing has been installed in the borehole, a gravel pack shall be installed from TD to a maximum of five (5) feet above the top of the screen. The gravel pack shall be placed in the same hydrologic unit or zone as determined by the site geologist and shall not connect multiple hydrologic units or zones. The gravel pack material shall be clean sand 1/8-inch to 1/4-inch diameter, placed with a tremie pipe. After installation, the top of the gravel pack shall be "tagged" or measured to determine placement. Then, additional gravel pack material shall be added, if needed.