Active SLED Opportunity · COLORADO · CITY OF ARVADA

    Gold Strike Park Construction

    Issued by City of Arvada
    cityRFQCity of ArvadaSol. 9190575703
    Open · 8d remaining
    DAYS TO CLOSE
    8
    due Aug 13, 2026
    PUBLISHED
    Jun 17, 2026
    Posting date
    JURISDICTION
    City of
    city
    NAICS CODE
    237310
    AI-classified industry

    AI Summary

    City of Arvada seeks qualified contractors for construction services at Gold Strike Park. Funded by multiple grants, this competitive sealed bid requires electronic submission by August 11, 2026. Pre-bid conference recommended July 9, 2026.

    Opportunity details

    Solicitation No.
    9190575703
    Type / RFx
    RFQ
    Status
    Active
    Level
    city
    Published Date
    June 17, 2026
    Due Date
    August 13, 2026
    NAICS Code
    237310AI guide
    Jurisdiction
    City of Arvada
    Agency
    City of Arvada

    Description

    The City of Arvada is seeking bids from qualified contractors for construction services for Gold Strike Park, 5500 W 56th Ave, Arvada, CO 80002. ... **Project Type**: CSB - Competitive Sealed Bid (Informal) **Source ID**: PU.AG.USA.1641.C13112451 **Piggyback Contract**: No **Question Acceptance Deadline**: 07/16/2026 04:00 PM EDT **Questions are submitted online**: Yes **Bid Submission Type**: Electronic Bid Submission **Additional Bidding Instructions**: See attached document for details. **Reference Number**: 0000427939 **Pricing**: In attached document **Bid Documents List**: | Item Name | Description | Mandatory | Limited to 1 file | |---|---|---|---| | Bid Documents | Documents defining the proposal | Yes | No | **Pre-Bidding Events**: Event: Prebid Conference | Date: 07/09/2026 03:00 PM EDT | Location: Gold Strike Park, 5500 W 56th Ave, Arvada, CO 80002 **Questions and Answers**: | Question | Answer | |---|---| | Hello, We are looking for a little more info on the Bridge specifically the Railing Detail. Thank you. | Answered in Addendum 2 | | Where new W1 fixtures are to be located we're to re-use existing conduits to feed these locations. a. Please confirm if existing fixtures are using local controls such as individual photocells. b. Please confirm the location if any of any lighting controls not integral to these fixtures. | Answered in Addendum 2 | | Please confirm there is NO MWBE or SBE or DBE percentage requirement for this project through the various funding sources. | Answered in Addendum 2 | | a. Are Weather Days / Winter Conditions included in our bid and schedule? b. Is the cost by owner or are we to carry an allowance? | Answered in Addendum 2 | | Is Builders Risk insurance by the contractor or by owner? | Answered in Addendum 2 | | Please confirm as noted on the job walk that no alternate manufacturers are allowed even if "Or Equal" is listed in the specifications. | Answered in Addendum 2 | | As noted on the job walk, please provide clarifying details on the specification requirement for the maintenance alternate. | Answered in Addendum 2 | | a. Please confirm the scope includes 52 numbered tree/tree-clump removals plus six existing stump-only removals. b. Please provide the DBH/caliper and approximate height of the 38 creek-restoration trees on CR1.1 and CR1.2. c. Please provide the approximate number, species, stem count and size range of the unnumbered tree clumps on DM1.0. d. Please clarify the required stump/root-removal depth. The specifications reference 12 inches, 18 inches and possibly five feet below grade. e. Which bid item includes the sandbar willow and small Siberian elm thinning shown on CR1.1? f. Please provide the thinning area, estimated stem count or density, diameter range and required final spacing. g. Does thinning include stump grinding, root removal, herbicide treatment and off-site disposal? h. Please identify the approximate number of trees requiring pruning or construction-clearance trimming. i. Please clarify which bid item includes: Numbered tree removals Existing stumps Creek tree removals Clumps and thinning Fence-line clearing Pruning Stump/root removal Hauling and disposal j. Please clarify which woody vegetation is included in the six-acre Clear and Grub item versus the Tree and Stump Removal lump sum. k. Does the Debris Haul Off item include trees, stumps, roots, chips and thinning debris? l. Which species and locations require cut-stump herbicide treatment? m. Which bid item includes herbicide treatment, and what application records are required? n. Please provide the anticipated schedule for Creek Restoration Phases 1, 2 and 3. o. Should separate mobilizations be included? | Answered in Addendum 2 | | Is the project tax exempt ? | Answered in Addendum 2 | | Are the impact depths for the (pour in place) accurate for the heights of the play equipment ? | Answered in Addendum 2 | | Can CAD files be provided to bidders to assist with accurate takeoffs? | Answered in Addendum 2 | | Anchor Design Works respectfully requests consideration as an approved equal for the specified steel structures. A complete substitution/approval package, including our proposal, preliminary drawings, renderings, specifications, and supporting documentation, has been submitted directly to Wenk Associates and the City of Arvada for review, as the BidNet Direct portal does not allow attachments. We believe our pre-engineered, prefabricated structure meets or exceeds the project's design intent and performance requirements, and we welcome the opportunity to provide any additional information needed for evaluation. | Answered in Addendum 2 | | Would you like us to put the price per piece of equipment for install or one lump sum for the entire install ? | Answered in Addendum 2 | | What is the estimated budget for this project? | Answered in Addendum 2 | | Will the City be procuring bid items 11 68 13-1 through 11 68 13-25 only, or will all items listed under Division 11 – Equipment on the Bid Schedule be provided by the City? Please provide clarification on which items are being procured by the City and items needing to be procured by the contractor. | Answered in Addendum 2 | | The soil preparation specifications in the Special Conditions section of the CSB 26-VCN-030 Gold Strike Park Construction Final document differ from the specifications in section 32 91 13 – Soil Preparation (3.3, D-G). Which specifications should be followed? | Answered in Addendum 2 | | For City of Arvada permits, will the City be waving the permit fees? | Answered in Addendum 2 | | Is a certified plumber required for any of the connections? | Answered in Addendum 2 | | Will construction water be available to the contractor with a temp water meter? | Answered in Addendum 2 | | Want to confirm that as mentioned in the prebid, Client/Owner is providing the playground equipment and BABA certifications, and contractor is to store equipment prior to installation. | Answered in Addendum 2 | | Would it be possible to get the name of the contractor the City uses for security camera installations? We are trying to find an installer for cameras being provided, but most companies we contact will only install equipment purchased directly through them. | Answered in Addendum 2 | | Please provide the model and manufacturer of the security cameras that will be provided so that we may find installation documentation. | Answered in Addendum 2 | | Please provide a supply and install responsibility matrix for all Equipment outlined in Div 11 and Site Furnishings listed in Div. 12. | Answered in Addendum 2 | | During the pre-bid site walk meeting it was stated that this project will be Buy American, please confirm if this includes components as well. Specifically, a component of the irrigation system, the ARAD hydrometers, are not made in the US. Please advise. | Answered in Addendum 2 | | It is understood that the intent of the plant selection is to be native, however the plant list has many species that are not commonly available in Colorado, such as Broom-like Ragwort and Manzanias. Is there a grower/nursery the City is working with or recommends for sourcing plant material? | Answered in Addendum 2 | | Please define what constitutes one payable “EA” under Bid Schedule Item 187.00 - Arvada Special inspections. Confirm what the quantity represents. | Answered in Addendum 2 | | Please provide a list of all inspections and tests intended to be paid under Item 187.00, including whether it covers City permit inspections, IBC structural special inspections, soils/compaction testing, concrete testing, asphalt testing, drilled-pier observation, post-installed anchors, reinforcing, welding, NDT, and shop fabrication. | Answered in Addendum 2 | | Please confirm whether the Contractor must contract directly with the inspection/testing agency or whether the City will select and contract the agency and reimburse/charge the work through Item 187.00. | Answered in Addendum 2 | | Please confirm the required inspection coverage for bridge and boardwalk drilled piers, including continuous versus periodic observation, bearing verification, concrete testing, installation logs, and whether each pier or each visit is one payable EA. | Answered in Addendum 2 | | For bid item 187, if actual accepted inspections differ from the estimated 250 EA, confirm that payment will be based on actual accepted quantities at the bid unit price and identify any limits or approval requirements for exceeding the estimated quantity. | Answered in Addendum 2 | | Bid items 254 and 255 are identified as hours in the Bid Schedule, while the technical specification describes up to 15 chemical samples and 20 asbestos samples measured by unit based on laboratory rates. Please confirm the intended unit of measurement and basis of payment. | Answered in Addendum 2 | | Confirm whether one properly qualified individual may bill simultaneously under the MMP Supervisor and CABI bid items when performing both roles. | Answered in Addendum 2 | | Clarify the authorization procedure, allowable markups, required documentation and eligible work under the $50,000 Environmental Force Account. | Answered in Addendum 2 | | Confirm whether the City has existing approved waste profiles or designated disposal facilities for the known metals-impacted soil, or whether the Contractor must obtain all profiles and select the landfill after award. | Answered in Addendum 2 | | Whether HASP preparation is included in Bid Item 250 or HSO Bid Item 251. | Answered in Addendum 2 | | If a Contractor employee is acceptable, what organizational separation is required from excavation and production operations to satisfy the independent Quality Assurance requirement. | Answered in Addendum 2 | | Whether full-time MMP Supervisor coverage is required during the planned SB03 remediation. | Answered in Addendum 2 | | Please confirm that the 40 hours is an estimated quantity and that additional authorized CABI hours will be paid at the bid unit rate. | Answered in Addendum 2 | | Please confirm whether Item 255 is measured by hour, by sample or by laboratory analysis, and identify what labor, delivery and laboratory costs must be included. | Answered in Addendum 2 | | Please confirm whether initial and supplemental asbestos-awareness training is paid under Item 253 or included in the Environmental Health and Safety Management lump sum. | Answered in Addendum 2 | | Please confirm that unforeseen RACS investigation, remediation, air monitoring, transportation and disposal will be paid through the Environmental Force Account or by change order. | Answered in Addendum 2 | | Please confirm whether Item 254 is measured by hour or by each chemical sample, and revise the Bid Schedule unit as necessary. | Answered in Addendum 2 | | Please confirm that the 15-sample quantity is an estimated quantity and that additional authorized samples will be paid at the Item 254 unit rate. | Answered in Addendum 2 | | Please confirm whether chemical testing required for initial or supplemental landfill waste profiles is paid under Item 254, included in Item 256 or paid through the Environmental Force Account. | Answered in Addendum 2 | | Please confirm whether Item 256 will be measured by pre- and post-excavation survey, truck volumes, landfill weights converted to cubic yards or another method, and identify whether the measured quantity is in-place or loose volume. | Answered in Addendum 2 | | Please confirm whether tree watering, twice-weekly TPZ monitoring, arborist services, root pruning and mulch rings are included in the Tree Protection Fencing unit price or paid under other bid items. | Answered in Addendum 2 | | Please confirm whether the existing gate is to be salvaged and returned with the wood post-and-cable fencing or disposed of offsite. | Answered in Addendum 2 | | Please confirm whether removal of existing light poles, concrete bases and associated wiring is included in Item 02 41 00-3 or the Division 26 electrical scope. | Answered in Addendum 2 | | Please identify the City delivery or storage location for salvaged materials and confirm whether cleaning, repair, packaging or long-term onsite storage is required. | Answered in Addendum 2 | | Please confirm the required stump and root-removal depth for Item 02 41 00-4 and whether different depths apply in landscape, hardscape, utility and creek-restoration areas. | Answered in Addendum 2 | | Please define one for one replacement for trees. Same size or a new youngling? | Answered in Addendum 2 | | Please confirm removal of Tree 47 and clarify whether the Tree of Heaven outside the property line is part of the Contract and whether the City will secure access authorization. | Answered in Addendum 2 | | a. Please define the payment boundary between Debris Haul Off and Earthwork, Excavation and Haul Off-site. b. Confirm whether clean and geotechnically unsuitable soil is paid under Division 31 while discrete manmade debris is paid under Item 02 41 00-5. | Answered in Addendum 2 | | Please confirm whether excavation, loading, hauling and disposal of the peninsula asphalt, road base, concrete and associated soil are paid under Item 02 41 00-5, Division 31 Earthwork, Division 32 Soil Preparation or another item. | Answered in Addendum 2 | | Please confirm whether clean concrete, asphalt, brick or gravel generated by Item 02 41 00-5 may be processed and reused onsite and identify the approved uses, processing requirements and payment treatment. | Answered in Addendum 2 | | Please confirm that creek trees and shrubs are paid under the applicable Division 32 planting items and that the 1.2 AC riparian seed is paid under Item 32 92 20-3, identifying what planting or seeding costs remain included in Item 02 41 00-6. | Answered in Addendum 2 | | Please provide the controlling Phase 2 and Phase 3 seed mixes, application rates and permitted installation methods for each restoration area. | Answered in Addendum 2 | | Please provide the required Lithocrete glass-aggregate coverage or distribution rate in pounds per square foot and confirm the approved Capitol Hill physical sample. | Answered in Addendum 2 | | Please confirm whether the City will provide the restoration ecologist or the Contractor must retain one, and provide the minimum number of weed-treatment, monitoring and follow-up visits required for each year. | Answered in Addendum 2 | | Please identify the required integral concrete color, color manufacturer/code, location of the referee sample and the exact approved finish to be matched. | Answered in Addendum 2 | | Please provide the controlling concrete mix requirements for the Lithocrete paving, including compressive strength, water-cement ratio, slump, air content, aggregate size and cement content. | Answered in Addendum 2 | | Please confirm which party pays for Lithocrete concrete testing and whether those tests are paid under Item 187, included in Item 03 30 00-1 or provided directly by the City. | Answered in Addendum 2 | | Please confirm that the 3,725 SF includes only Capitol Hill Lithocrete and excludes the separately scheduled 80 SF of Lithochrome tracks, 74 SF of exposed aggregate and 74 SF of cobble inlay. | Answered in Addendum 2 | | Can timber abutments and round stock timber pile foundations be an approved alternative to concrete abutments and concrete footer foundations for the boardwalk and small bridge? | Answered in Addendum 2 | | Please confirm the required mounting method for each handrail system (embedded posts, cast-in sleeves, surface-mounted base plates, or epoxy anchors). | Answered in Addendum 2 | | Please provide a complete item-by-item furnish-and-install matrix for Division 11 identifying which equipment is City-furnished, Contractor-furnished, bicycle-playground subcontractor furnished, artist furnished and installation-only. Please reference Bid Items 11 68 13-1 through 11 68 13-38. | Answered in Addendum 2 | | a. Please confirm that all playground-equipment concrete footings, reinforcement, anchors, excavation, backfill and concrete testing are included under Item 11 68 13-39. b. Also confirm whether any playground foundations are included in the Division 3 concrete bid items. | Answered in Addendum 2 | | Per the documents, this project calls for a 3 phase plan for the Restoration plan. Should contractors plan on completing the pan as shown in the Riparian Plan ( 3 Phases, 1 phase a year) or should we plan on being able to do all the restoration in the creak at once while completing the remaining areas of the park? | Answered in Addendum 2 | | It was under our understanding that the owner with be purchasing some if not all of the playground equipment. Could we get a list of that equipment and if any of it has been ordered | Answered in Addendum 2 | | With the owner purchasing the playground equipment, the suppliers will also usually do the install as well. It might be cheaper for the city carry the install as well as purchasing? | Answered in Addendum 2 | | Without exact info on the existing bridge to be moved. Can we carry and allowance for that and work out the details once the project is awarded. | Answered in Addendum 2 | | The plant list has many species that are not commonly available in Colorado. Has the architect started looking at sourcing/availability for plant material for 2028? If so, are there specific growers they are working with to have the material readily available for 2028? | Answered in Addendum 2 | | We need to know exactly which materials associated with the site furnishings are being sourced direct. a. We are aware that Brightview would be responsible for installation, but we need the exact specifics of what Brightview will be buying versus just installing (ex: boulders? Flagstone? Plant ID signs? Footings for play equipment? EWF? etc.). | Answered in Addendum 2 | | At the pre-bid site walk meeting, the architect stated that this will be a Buy American job. Has anyone confirmed that the components in the irrigation plans are all American made? (ex: ARAD hydrometers do not appear to be made in the US) | Answered in Addendum 2 | | The comments below concerning the permitting that might be required due to both steams being “U.S. Waters” Is the City aware of this process and that it may delay the start of the project and add additional cost. | Answered in Addendum 2 | | In Phase I ESA Executive Summary (pg. ii, Section 3.7). The Phase I report, and Birch Ecology studies identify a "strong methane odor" in pits south of the parking lot and up to 50% methane gas by volume in the southern landfill area. a. Will any proposed enclosed structures require passive or active sub-slab methane mitigation barriers, venting systems, or gas detection sensors? b. If yes, please provide design specifications and details so these systems can be accurately estimated. | Answered in Addendum 2 | | In the Geotechnical Report Summary (Section 3.7) vs Local Area Knowledge (Section 4.3). The Draft Geotechnical Report notes fill depths of up to 10 feet below surface elevation, while historical landfill data indicate fill depths of 25 to 30 feet below surface elevation on the southern portion of the site. a. Given the presence of landfill material up to 30 feet deep, has it been determined if there will be soil remediation throughout the site? b. If so, can you provide a quantity of soil needing to be remediated? | Answered in Addendum 2 | | In Section 3.7 & Section 4.1 (Twins Inn plume). The Groundwater is expected to be between 4 and 9.5 feet below surface elevation. The site lies within the active, contaminated plume of the Twins Inn Superfund cleanup, with documented VOC impacts in monitoring well MW036. a. With some of the utilities being near or below some of the recorded ground water levels and concentration trends increasing, is there concern that the Contractor will need to assume dewatering for contaminated water treatment and disposal? b. If so, does the owner want to have this cost captured in the normal dewatering line item or will the owner make a separate line item for water decontamination? | Answered in Addendum 2 | | Per the Phase II ESA Report, Section 4 (Conclusions and Recommendations), the Phase II ESA recommends over-excavation of the area around SB03/MW-03 due to lead and arsenic exceedances. However, the exact horizontal and vertical boundaries of this excavation are not defined on the contract drawings. a. Can you please provide the precise horizontal and vertical dimensions (or a grading/excavation plan view) of the soil to be over-excavated? b. Alternatively, can you please provide an estimated quantity (in cubic yards or tons) to be carried by all bidders as a standard allowance? c. Does the owner have a specific location they want to use for any contaminated soil? | Answered in Addendum 2 | | Bid Item 253 CABI has a quantity of 40 HRS. Per Section 250 Environmental Health and Safety Management it states that the CABI would have to stay on site 100% of the time during earthmoving. a. With the higher potential of encountering contaminated soil can this quantity be increased b. or will the owner cover the added cost with owner provided contingency? | Answered in Addendum 2 | | The Pre-Bid Agenda states that the removal of concrete on the peninsula will need a CDOT permit. a. Is this cost to be captured in item 02 41 00-6 Creek Restoration or in the General Conditions? b. What CDOT permit is required for the peninsula area? | Answered in Addendum 2 | | Can the owner verify if the contractor will need a remediation permit or if the permit will be covered in the environmental force account (If Needed)? | Answered in Addendum 2 | | Items 31 00 00-1 &2 have the same description for this line item but different quantities. a. Can the owner please clarify what the difference is or verify if one of those line items is for remediation? | Answered in Addendum 2 | | Can the owner please provide clarification on the length, weight and detail and/or picture of the existing bridge to properly price the crane/s and crane pad/s for proper pricing of the 13 30 00-4 Pedestrian Bridge LS item? | Answered in Addendum 2 | | Sheet S 1.1 Enlargement 1 Note 1 states that the existing bridge has not been reviewed by MM. a. Please verify that the bridge has been cleared for use on this project. b. If not, does the owner hold contingency for the fabrication of a new bridge. | Answered in Addendum 2 | | With the existing Bridge Structure not being reviewed by MM yet, can the owner please verify if there is contingency for abutment design change if needed? | Answered in Addendum 2 | | In the Birch Ecology Report Pg. 5 it states that in test locations 3,5, and 7 there were materials found from the previous trailer park such as bricks, pipes, plastic, metal, and asphalt. a. Has any of the materials found tested for any hazardous materials? b. If not, does the owner carry any contingency for remediation if needed? | Answered in Addendum 2 | | In the Birch Ecology Report Pg. 16 it says that test locations, 1,2,3, and 4 has “Very Gravelly Alluvium”. a. Can the owner add a line item for rock picking and give an approximate quantity for keeping proposals apples to apples? | Answered in Addendum 2 | | The Birch Ecology Report calls for a 3-year restoration plan which was to start in the Fall of 2025 and end in 2028. The Invitation to Bid has a deliverable date of August 31, 2028. a. Can the restoration plantings be installed quicker if they are within the State of Colorado planting windows? b. With the start of construction not starting until the Fall/Winter of 2026 and the Restoration Phasing starting in the Fall of 2025, will the Liquidated Damages be waived and a new Project Completion date be provided? | Answered in Addendum 2 | | At the pre-bid site walk meeting, the architect stated that this will be a Buy American job. Has anyone confirmed that the components in the irrigation plans are all American made? (ex: ARAD hydrometers do not appear to be made in the US) | Answered in Addendum 2 | | Per sheet E3.0 bridge detail, is the contractor to install the “U1” handrail lights only on the east side and not on the west? | Answered in Addendum 2 | | Given the complexity and overlap of the various engineering and environmental requirements, a thorough analysis is required to identify potential design conflicts and ensure full compliance. To preserve the integrity of our review and provide the highest quality clarifications, we respectfully request an extension of the RFI deadline to account for any additional inquiries. This additional window will allow our trade partners and specialists to complete their due diligence, ultimately minimizing project risk and ensuring clearer, more actionable questions. | Answered in Addendum 2 | | Section 11 68 13, Part 2.A.a & Section 12 83 00, Part 2.7.A.4 within the specifications state that the City will procure the playground equipment and EV charging equipment. a. What is the anticipated delivery schedule from the City's suppliers for these items? b. In the event that equipment is delivered with missing components or hidden transit damage, who bears the financial responsibility for delays to the construction schedule? | Answered in Addendum 2 | | The playground specifications include the following note: "NOTE: The City will procure the equipment from the manufacturer. Contractor will be responsible for storing and installing the equipment." a) Please confirm that this note applies to all of Part A (Items 1–25), and that these items will be Owner-furnished, with the Contractor's scope limited to receiving, storing, and installing the equipment. b) For Part B through N, please clarify which items, if any, are intended to be Owner-furnished versus Contractor-furnished and installed. If there are exceptions, please identify the specific bid items. | Answered in Addendum 2 | | The following items are manufactured by Duncan & Grove, the same manufacturer identified for the Owner-procured playground equipment: Bat Box No. 1 Robinia, Bug Box No. 1 Robinia, Bird Box No. 1 Robinia. a. Please clarify whether these items are to be included in the Owner's Duncan & Grove procurement package or furnished by the Contractor. b. If Contractor-furnished, please confirm that these items are to be procured separately from the Owner-furnished playground equipment. | Answered in Addendum 2 | | Please revise the bid form to include a separate line item for the "Bee House" shown on Sheet L4.12, Detail 08. | Answered in Addendum 2 | | a. Please identify the categories of work and equipment that are intended to be Owner-Furnished, Contractor-Installed (OFCI) versus Contractor-Furnished, Contractor-Installed (CFCI). b. If there are exceptions within a particular category, please identify those specific items. | Answered in Addendum 2 | | a. Please confirm if third-party drop-testing/field performance testing is required for the playground safety surfacing under Section 32 18 16, b. and if so, whether the Owner or the Contractor carries the cost of the testing agency. | Answered in Addendum 2 | | Please confirm the contractor will not be responsible for payment of any/all tap, development or electrical permit fees. | Answered in Addendum 2 | | The technical specifications outline a specific Environmental Force Account ($50,000) dedicated strictly to environmental health, safety management, and regulated soil handling. Given current market volatility regarding material pricing and availability (due to tariffs and supply chain factors), does the Owner intend to carry a separate, general construction contingency or commercial force account to address unforeseen, substantiated material cost escalations during the course of the project? | Answered in Addendum 2 | | Drawing L4.1 (Detail 06), Drawing L4.2 (Details 01-08), and Specification Section 03 30 00 designate "Colorado Hardscapes or Approved Equal" for the decorative concrete finishes. To ensure apples to apples bidding while meeting the design intent, could the designer please provide a list of the ONLY approved equal manufacturers/contractors that are an acceptable alternate to Colorado Hardscapes? | Answered in Addendum 2 | | Section 03 33 00 (Architectural Cast-in-Place Concrete - Lithocrete), Part 2.5, Paragraph B, under the product specifications for Lithocrete Surface-Seeded Aggregate, "Distribution percentage" is listed but provides no quantitative value or percentage. Please clarify the required seeding rate or coverage density (e.g., pounds per square foot or percentage of surface area) for the light amber/gold and mirror glass aggregates. | Answered in Addendum 2 | | Section 31 00 00, Part 3.5, Paragraph 13; and CDOT Revision of Section 250, Earthwork specifications state that dewatering discharges to surface waterways require a CDPHE permit and water treatment prior to discharge if necessary. Given that the contract documents reference a Limited Phase II Environmental Site Assessment and a Materials Management Plan (MMP) for handling impacted soil and suspected asbestos, there is a high probability of encountering contaminated groundwater. Please clarify if groundwater treatment costs (filtration, carbon vessels, etc.) must be built into the contractor's base bid or if they will be paid out of the $50,000 Environmental Force Account. | Answered in Addendum 2 | **Addendums**: | Addendum | Date | Note | |---|---|---| | Addendum No. 1 | 07/15/2026 06:01 PM EDT | | | Addendum No. 2 | 07/28/2026 02:56 PM EDT | |

    Key dates

    1. June 17, 2026Published
    2. August 13, 2026Responses Due

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