24-27-KB Addendum 4.pdf

Addendum 4 IFB No. 24-27-KB Page 1 of 7

Addendum #4 to

Spotsylvania County

IFB #24-27-KB

Motts Run Water Treatment Plant Expansion & Rehabilitation

Phase 1

February 2, 2024

Addendum #4 to Invitation for Bid (IFB) No. 24-27-KB is issued in accordance with the IFB Terms & Conditions and is intended to provide additional information and clarification to Respondents.

Addendum #4 consists of two (2) items which are listed below, attached hereto and made a part hereof to IFB No. 24-27-KB.

ITEM 1 – CHANGES TO IFB

1. Modify Contract Specifications Section 012100 – Allowances, add Paragraph 3.3,C as follows:

“C. Allowance No. 3: Lump Sum allowance: Include the sum of $10,000 for replacement of the existing isolation valves shown on Drawing C-D-2, Detail A and B. Work to include coordination with Owner to drain the raw water main to the extent needed to fully replace the isolation valves and appurtenances if existing valves do not properly seat for the replacement of the isolation valves.

1. This allowance includes material, receiving, handling, and installation costs, and

Contractor overhead and profit.”

2. Remove Contract Drawings Sheet E-D-6 in its entirety and replace with revised Drawing Sheet E-D-6, Attachment B of this Addendum.

3. Remove Contract Specifications Section 013200 – Construction Progress Documentation in its entirety and replace with revised Specifications Section 013200 – Construction Progress Documentation, Attachment C of this Addendum.

4. Modify Contract Specifications Section 462124 – Horizontal Cylindrical Raw Water Intake Screens, Paragraph 2.1.B.3, revise “0.13 inch (screen only)” to “0.47-inches of water (screen only)”.

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5. Modify Contract Specifications Section 462124 – Horizontal Cylindrical Raw Water Intake Screens, Paragraph 1.5.B. revise “Johnson Filtration Systems, Inc.” to "Johnson Screens”.

6. Remove Attachment D – Special Terms and Conditions for Federally-Funded Transactions in its entirety and replace with Attachment D of this Addendum.

ITEM 2 – Q&A

1. Would you be able to confirm if the coatings might be involved in Phase I?

ANSWER: Yes, please refer to Specifications Section 099679 – Atmospheric Protection and Plant Service Areas Coatings. Coatings will be applied to surfaces as directed in the coating schedule.

2. Reference drawing C-SP-4 Inset ‘B’. "Decorative Fence (Refer to Plans by Others)".

Please confirm if the decorative fence is in the project scope of work.

ANSWER: Confirmed, decorative fence is included in the project scope of work. See Sheet A-RW-6.

3. Reference specification 033500 paragraph 3.7 note E. “Concrete to receive chemical hardener except at electrical rooms”. Please confirm is chemical hardener is needed at the new electrical building. If so please provide specified chemical harder product.

ANSWER: Chemical hardener is not required at new electrical building. Provide sealer per finish schedule on sheet A-D-2. Refer to Specifications Section 071900 – Water Repellents, Paragraph 2.2 for sealer requirements.

4. Reference drawing S-GN-1, "Concrete Joint Notes" 2. Please provide specified waterstop.

ANSWER: For Expansive Waterstops, as shown in Section 2/S-D-2 and Detail J/S-D-3, provide a preformed hydrophilic waterstop and adhesive as recommended by the waterstop manufacturer. Acceptable products Hydrotite CJ-1020-2K by Sika, ADCOR 500S by GCP, or approved equal. PVC Waterstops are not required.

5. Reference drawing S-GN-1. Are waterstops required at concrete footing with concrete footing walls?

ANSWER: Waterstops are not required in the joints between concrete footings and concrete walls.

6. Reference drawing C-SE-2 detail A. Is that detail needed on an existing stone surface?

ANSWER: Detail A on C-SE-2 is not required on the existing stone surface. Please refer to “CE Note” on Sheet C-SE-1 for clarity on this comment and requirements for the existing gravel road.

7. Reference section B, B-2. Item C states in part, "Included as a part of this Bid are the following documents which are required to be submitted with the Bid, on the forms provided". Section lists out forms that have been provided in Section B. Please confirm, IFB No. 24-27-KB Page 3 of 7 what additional documentation/forms need to be submitted at the time of bid? Please provide a comprehensive list of all required forms and supporting documentation, due with the bid submission.

ANSWER: It is the responsibility of the Bidder to ensure all required documentation/forms are provided with the bid. Section B provides a list of documents.

8. Please provide electrical ductbank specifications.

ANSWER: Refer to Specification Section 260543 - Underground Ducts and Raceways for Electrical Systems and Detail AP on Sheet E-D-5.

9. Please provide electrical manhole sizes for manholes "MVMH RW" and "LVMH RW" shown on drawing E-RW-5.

ANSWER: Refer to Detail AM on Sheet E-D-4.

10. Please provide detail for removing and patching electrical ductbank from existing raw water pump station shown on drawing E-RW-4.

ANSWER: Bidder to determine demolition and patching methods. Existing ductbank portion to remain will not be re-used and abandoned in place.

11. Reference drawing C-D-2 details A & B notes 1 & 2. Please confirm that if additional modifications from the proposed plan to test the isolation valves and install the new 2" and 4" CARVs that a Change Order will be issued.

ANSWER: Please see Item 1, No. 1 of this Addendum.

12. Reference spec section 432426.15 paragraph 2.3 note D. Please provide product specifications for existing monorail and crane, including rated lifting capacity.

ANSWER: Per the specification requirements, the Contractor is to field verify monorail, hoist, and crane capacities.

13. Reference drawing M-D-4 detail D. Please confirm if detail D applies to this contract.

ANSWER: Detail not-applicable.

14. Reference drawing M-D-4 detail F. Please confirm if detail F applies to this contract.

ANSWER: Detail not-applicable.

15. With regard to Section 462124, - 2.1/B.3 – Maximum pressure drop at rated capacity is called out as 0.13” of water. With the required 0.90” wire and the maximum slot width of 0.04”, our screen design will produce a pressure drop of 0.47” of water / 0.02 psi (screen only). As most specifications require a 0.1 psi pressure drop limit, could you please review this requirement?

ANSWER: Please see Item 1, No. 4 of this Addendum.

16. It appears that the installation of the new medium voltage transformers and the equipment inside the new electrical building is on the critical path of this project. The current manufacturer lead times for medium voltage pad-mounted transformers and the low-voltage switchgear are well beyond the six hundred and seventy-seven calendar days

IFB No. 24-27-KB Page 4 of 7 given to meet substantial completion. In fact, the lead times are beyond the seven hundred seventy days required for final completion. We have been given current lead times of over 150 weeks for fabrication and delivery alone for the transformers and over 100 weeks for fabrication and delivery for the low-voltage switchgear. These lead times do not account for order processing, submittals, approval, etc. Can the current schedule of 677/770 days for substantial/final completion be extended to meet the current market lead times?

ANSWER: Equipment lead times provided by the manufacturers to the Engineer are 100-120 weeks for transformers and 63-99 weeks for the LV switchgear. Schedule will be evaluated upon award.

17. Is there any intention to replace the existing light fixtures in the pump station with new LED fixtures?

ANSWER: Existing lights will not be replaced as a part of this project.

18. Would it be possible to get the Series and Model number of the existing MCC-R?

ANSWER: Existing MCC-R is GE 8000 Line Motor Control. Model number will be provided to the awarded Contractor.

19. Reference Spec section 432426.15, section 3.5. Please confirm vibration testing requirements also apply to new low voltage pump motors for existing raw water pumps

no. 5 and 6.

ANSWER: Vibration testing requirements do not apply to Pumps No. 5 and 6. Motor testing is to be performed as specified in Specifications Sections 400593.23 – Low- Voltage Motor Requirements for Process Equipment and 432426.15 – Vertical Turbine Short-Set Pumps - Raw Water.

20. Reference drawing M-RW-4. Please provide manufacturer information for existing raw water pumps no. 5 and 6.

ANSWER: Contractor to field verify information as needed to replace motors for Pumps No. 5 and 6.

21. Reference drawing M-RW-4. Is it acceptable for manufacturer of the new raw water pumps no. 1-4 to differ from existing raw water pumps no. 5 and 6?

ANSWER: Yes.

22. Item one of sequencing spec 013200 states work to be performed November 24 to February 25. Given long equipment lead times can work associated with this scope also take place between November 25 and February 26?

ANSWER: This constraint shall remain as written. Actual lead times will be further evaluated with Contractor upon award of contract.

23. Item one of sequencing spec 013200 states that it is a 30-day outage. Can more than one 30-day outage take place during the seasons low flow period?

ANSWER: Assume only a single outage to perform the extent of the work defined under Item 1 of the Schedule of Constraints, Outages, and Sequencing.

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24. Reference drawing M-RW-2. Please provide a connection detail for the new 48" raw water intake screen with the 6" air burst and the 2" deicing lines.

ANSWER: Contractor to field verify existing de-icing, air burst, and flushing piping connections and coordinate required connection to new screen with the screen manufacturer.

25. Reference spec 462124 paragraph 1.5.B. Johnson Filtration Systems Inc. is listed as an approved manufacturer for the 48" Raw Water Intake Screen. A representative of Johnson Filtration Systems let me know they do not carry this product and suggested that Johnson Screens may be the correct manufacturer. Please clarify.

ANSWER: Please see Item 1, No. 5 of this Addendum.

26. What is the pressure of the two 36" water mains that require line stop as called out on C-

YP-1?

ANSWER: 85 psig for the raw water main to the WTP and 50 psig for the raw water main to the reservoir with a 1.5 service factor.

27. Reference spec 074113.16. Please confirm the width of the standing seam metal panels.

The spec indicates that they are 24" wide and the drawings scales out at 12" wide.

ANSWER: Standing seam metal panels are to be 24” wide per Specifications Section

074113.16 – Standing-seam Metal Roof Panels.

28. Reference spec 13200. Based on feedback from the gear vendors/electricians, the current lead times extend well into the contract period (118-150 wks for transformers). We respectfully request an additional 9 months of contract time to receive, install, start-up, and commission the new pump station/electrical building.

ANSWER: Equipment lead times provided by the manufacturers to the Engineer are 100-120 weeks for transformers. Schedule will be evaluated upon award.

29. Reference spec 13200. Based on feedback from the gear vendors/electricians, the current lead times extend well into the contract period (118-150 wks for transformers). If extended construction contract time is not allowed please advise if the owner will allow for an administrative NTP period at the front end of the job to procure, submit, approve and release for delivery extended lead time items such as electrical gear. We respectfully request an 9 month window ahead of construction NTP for all gear to arrive onsite in time.

ANSWER: Equipment lead times provided by the manufacturers to the Engineer are 100-120 weeks for transformers. Schedule will be evaluated upon award.

30. Please confirm that the new leveling sensors shown on E-RW-7 (Tags LSL-1410, 1420, & 1430) are going to the existing wall pipes and do not require addition piping and/or fixtures.

ANSWER: Confirmed.

31. Please provide as-builts for the river intake structure.

IFB No. 24-27-KB Page 6 of 7

ANSWER: Existing as-built drawings will be provided to the awarded Contractor.

32. Reference drawing M-RW-3 note 3. Where does the owner anticipate using the line stop?

ANSWER: Note 3 on M-RW-3 does not pertain to any linestop. Refer to C drawings for linestops.

33. Reference drawing C-YP-1 (2) 36” linestops. Please confirm the replacement magnetic meter and linestops can be done at anytime during the project, except when doing the screen and valve replacement.

ANSWER: Yes. For the linestop for the MAG Meter replacement, in addition to the constraint of the screen/intake valve replacement, neither the reservoir nor river can be in a flood condition. Contractor must submit a written plan for Owner and Engineer review and approval. For the linestop for the Pump Station discharge header valve installation, work can only be performed during a 4-hour outage and not during screen/intake valve replacement, neither the reservoir nor river can be in a flood condition. Contractor must submit a written plan for Owner and Engineer review and approval. These constraints and stipulations have been added to the table in Specifications Section 013200. Please see Item 1, Number 3 of this Addendum.

34. Reference M-RW-7. Is there a maximum shutdown time for the magnetic meter replacement? Is there a maximum duration a linestop can be in place?

ANSWER: Maximum shutdown time with linestop in place is 10 calendar days. These constraints and stipulations have been added to the table in Specifications Section 013200. Please see Item 1, Number 3 of this Addendum.

35. Following the site visit and review of the specifications, I would like to request that Xylem-Goulds Water Technology be added to the list of approved manufacturers for Section 432426.15, Raw Water VIT.

ANSWER: Insufficient information provided to validate selections as substitution or or-equal as defined and required in General Conditions, Article 4.11.

36. Per Civil drawing C-YP-1, there are two new line stops called out on two 36” ductile iron water pipes. What purpose(s) do these line stops serve?

ANSWER: The western 36” ductile iron pipe is the raw water transmission main to the Motts Run Reservoir. The purpose of this line stop would be to allow for the modifications to the piping inside the Mag Meter Vault. The eastern 36” ductile iron pipe is the raw water transmission main to the Water Treatment Plant. The purpose of this line stop would be to allow for the installation of Pump No. 3 and further modifications as needed to the existing pumps inside the Raw Water Pump Station.

37. Per Civil drawing C-YP-1, please provide the invert elevations of the two 36” ductile iron water pipes receiving line stops.

ANSWER: The western 36” ductile iron pipe (raw water transmission main to the Motts Run Reservoir) has an approximate invert elevation at the line stop location of 80.0 (NAVD88). The eastern 36” ductile iron pipe (raw water transmission main to the Water Treatment Plant) has an approximate invert elevation at the line stop location of 78.0

IFB No. 24-27-KB Page 7 of 7

(NAVD88). See 1996 Gannett Fleming As-Built Drawings, Attachment A of this addendum, for additional information on pipe alignment and invert elevations along each of the two 36” mains. The drawings provided in Attachment A are in NGVD 29 datum.

38. Per Civil drawing C-D-2, detail A & B state that replacing the C/ARV’s requires leakage testing their isolation valves for full seat closure prior to removing the C/ARV’s. Please describe the recommended valve testing procedure. Keep in mind there are no apparent downstream access points between the isolation valves and the C/ARV’s. Therefore, the C/ARV’s will have to be partially or completely removed prior to testing their isolation valves for 100% closure.

ANSWER: Means and Methods for testing of the existing isolation valves are the responsibility of the Contractor. The Contractor is to propose testing procedures prior to performing the work and for review by the Owner and Engineer.

39. We had a question about this project and the clean water pump being open line shaft or enclosed shaft. Being raw water, it should be a long was away from dirty water, but the spec keeps referring to enclosed line shaft. This will dramatically impact the cost of our offering; would we be able to get clarification soon? I’ve attached the spec section…please see Item 2.4 pg 13 of attached specification section 432426.15.

ANSWER: Specified requirements for pumps are to remain as written.

40. Please provide us a detail drawing for manhole LVMH RW and manhole MVMH RW shown on drawing E-RW-5.

ANSWER: Refer to Detail AM on Sheet E-D-4.

41. Please provide us a size and detail drawing for the two-transformer pad shown on drawing E-RW-5.

ANSWER: Please See Item 1, Number 2 of this Addendum.

ATTACHMENTS:

Attachment A – 1996 Gannett Fleming As-Built Drawings Attachment B – E-D-6 Attachment C – 013200 - Construction Progress Documentation Attachment D – Special Terms and Conditions for Federally-Funded Transactions - Revised

Respondents shall acknowledge receipt of this Addendum with Quote submission.

February 2, 2024 Katie Baird Date Senior Procurement Officer

Attachment A

E-D-6

ELECTRICAL

TYPICAL DETAILS VI

COUNTY OF SPOTSYLVANIA, VIRGINIA

MOTTS RUN WATER TREATMENT PLANT

EXPANSION AND REHABILITATION - PHASE 1

Tel: (703) 691-6500

10560 Arrowhead Drive, Suite 500 Fairfax, VA 22030

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© 2023 CDM Smith 257221-266462 All Rights Reserved December 2023

Motts Run WTP Expansion & Rehabilitation - Phase 1 Construction Progress Documentation Spotsylvania County, VA 013200 - 1 Issued for Bid

SECTION 013200 - CONSTRUCTION PROGRESS DOCUMENTATION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes administrative and procedural requirements for documenting the progress of construction during performance of the Work, including the following:

1. Startup construction schedule.

2. Contractor's Construction Schedule.

3. Construction schedule updating reports.

4. Daily construction reports.

5. Material location reports.

6. Site condition reports.

7. Unusual event reports.

B. Related Requirements:

1. Section 014000 “Quality Requirements” for schedule of tests and inspections.

2. Section 012900 “Payment Procedures” for schedule of values and requirements for use of cost-loaded schedule for Applications for Payment.

1.3 DEFINITIONS

A. Activity: A discrete part of a project that can be identified for planning, scheduling, monitoring, and controlling the construction Project. Activities included in a construction schedule consume time and resources.

1. Critical Activity: An activity on the critical path that must start and finish on the planned early start and finish times.

2. Predecessor Activity: An activity that precedes another activity in the network.

3. Successor Activity: An activity that follows another activity in the network.

B. Cost Loading: The allocation of the schedule of values for completing an activity as scheduled.

The sum of costs for all activities must equal the total Contract Sum.

C. CPM: Critical path method, which is a method of planning and scheduling a construction project where activities are arranged based on activity relationships. Network calculations determine the critical path of Project and when activities can be performed.

Attachment C

Spotsylvania County, VA 013200 - 2

D. Critical Path: The longest connected chain of interdependent activities through the network schedule that establishes the minimum overall Project duration and contains no float.

E. Event: The starting or ending point of an activity.

F. Float: The measure of leeway in starting and completing an activity.

1. Float time belongs to Owner.

2. Free float is the amount of time an activity can be delayed without adversely affecting the early start of the successor activity.

3. Total float is the measure of leeway in starting or completing an activity without adversely affecting the planned Project completion date.

G. Resource Loading: The allocation of manpower and equipment necessary for completing an activity as scheduled.

1.4 INFORMATIONAL SUBMITTALS

A. Format for Submittals as required:

1. Working electronic copy of schedule file.

2. PDF file.

B. Startup construction schedule.

1. Submittal of cost-loaded, startup construction schedule will not constitute approval of schedule of values for cost-loaded activities.

C. Contractor's Construction Schedule: Initial schedule, of size required to display entire schedule for entire construction period.

1. Submit a working digital copy of schedule, using software indicated, and labeled to comply with requirements for submittals.

D. CPM Reports: Concurrent with CPM schedule, submit each of the following reports. Format for each activity in reports shall contain activity number, activity description, cost and resource loading, original duration, remaining duration, early start date, early finish date, latest allowable start date, latest allowable finish date, status (where critical) and total float and free float in calendar days.

1. Activity Report: List of activities sorted by activity number and then early start date, or actual start date if known.

2. Logic Report: List of preceding and succeeding activities for each activity, sorted in ascending order by activity number and then by early start date, or actual start date if known.

3. Total Float Report: List of activities sorted in ascending order of total float.

4. Earnings Report: Compilation of Contractor's total earnings from the Notice to Proceed until most recent Application for Payment.

E. Construction Schedule Updating Reports: Submit with Applications for Payment.

Spotsylvania County, VA 013200 - 3

F. Daily Construction Reports: Submit at weekly intervals.

G. Material Location Reports: Submit at monthly intervals.

H. Site Condition Reports: Submit at time of discovery of differing conditions.

I. Unusual Event Reports: Submit at time of unusual event.

J. Qualification Data: For scheduling consultant.

1.5 QUALITY ASSURANCE

A. Scheduling Consultant Qualifications: An experienced specialist in CPM scheduling and reporting, with capability of producing CPM reports and diagrams within 24 hours of Engineer's request.

B. Prescheduling Conference: Conduct conference at Project site to comply with requirements in Section 013100 "Project Management and Coordination." Review methods and procedures related to the preliminary construction schedule and Contractor's Construction Schedule, including, but not limited to, the following:

1. Review software limitations and content and format for reports.

2. Verify availability of qualified personnel needed to develop and update schedule.

3. Discuss sequencing and constraints, including interim milestones.

4. Review submittal requirements and procedures.

5. Review time required for review of submittals and resubmittals.

6. Review requirements for tests and inspections by independent testing and inspecting agencies.

7. Review and finalize list of construction activities to be included in schedule.

8. Review procedures for updating schedule.

9. Submit at this conference preliminary activities defining the planned operation during the first 90 calendar days after the Notice to Proceed.

1.6 COORDINATION

A. Coordinate Contractor's Construction Schedule with the submittal schedule, progress reports, payment requests, and other required schedules and reports.

1. Secure time commitments for performing critical elements of the Work from entities involved.

2. Coordinate each construction activity in the network with other activities, and schedule them in proper sequence.

1.7 CONTRACTOR'S CONSTRUCTION SCHEDULE

A. Program Description

1. A Critical Path Method (CPM) construction schedule shall be used to control the Work and to provide a basis for determining job progress. The construction schedule shall be

Spotsylvania County, VA 013200 - 4 prepared and maintained by the Contractor. All work shall be done in accordance with the established CPM schedule. The Contractor and all subcontractors shall cooperate fully in developing the construction schedule and in executing the work in accordance with the CPM schedule.

2. The construction schedule shall consist of a computerized CPM network (diagram of activities) presented in a time-scaled graphic (print-out) with reports, as specified herein.

B. Computer Scheduling Software: Prepare schedules using current version of a program that has been developed specifically to manage construction schedules.

1. Use Oracle Primavera P6 for current Windows operating system. All schedule Submittals to be provided in .pdf and .xer format as well as three full-size (24”x36”) hard copy color plots.

C. Qualifications:

1. The Contractor shall have the capability of preparing and utilizing the specified CPM schedule or engage the services of a specialized scheduling professional to do so. Within seven calendar days of the award of contract, provide a résumé or qualifications statement for the individual within the Contractor's organization, or the outside consultant, who is being proposed as the responsible party for development and maintenance of the CPM schedule. The résumé or qualifications statement shall demonstrate that the proposed responsible party has successfully developed and maintained CPM schedules for at least three construction projects of the same size or greater than this project. The proposed responsible party for the CPM schedule is subject to approval by the Engineer. If the proposed responsible party for the CPM schedule is not approved by the Engineer, Contractor shall resubmit a more-appropriate candidate for approval.

D. Time Frame: Extend schedule from date established for the Notice to Proceed to date of Final Completion.

1. Contract completion date shall not be changed by submission of a schedule that shows an early completion date, unless specifically authorized by Change Order.

E. Activities: Treat each floor or separate area as a separate numbered activity for each main element of the Work. Comply with the following:

1. Activity Duration: Define activities so no activity is longer than 15 working days, unless noted otherwise or specifically allowed by Engineer. Working days shall be as dined in 011000-1.8.-B.

2. Activities to facilitate the Work: Indicate start and completion dates for the following as applicable:

a. Securing of approvals and permits required for performance of the Work.

b. Temporary facilities.

c. Construction of mock-ups, prototypes, and samples.

d. Owner interfaces and furnishing of items.

e. Interfaces with Separate Contracts.

f. Regulatory agency approvals.

g. Punch list.

Spotsylvania County, VA 013200 - 5

3. Procurement Activities: Include procurement process activities for long lead-time items and major items, requiring a cycle of more than 60 calendar days, as separate activities in schedule. Procurement cycle activities include, but are not limited to, submittals, approvals, purchasing, fabrication, and delivery.

4. Submittal Review Time: Include review and resubmittal times indicated in Section 013300 "Submittal Procedures" in schedule. Coordinate submittal review times in Contractor's Construction Schedule with submittal schedule.

F. Maintenance of Plant Operations (MOPO): Include constraints, outages, and sequencing indicated in the Contract Documents and as follows in the Schedule and show how the sequence of the Work is affected.

G. “Maintenance of Plant Operations (MOPO) Schedule – SEE SCHEDULE AT END OF

SECTION”

1.

1. Work Restrictions: Show the effect of the following items on the schedule:

a. Limitations of continued occupancies.

b. Uninterruptible services.

c. Partial occupancy before Substantial Completion.

d. Use-of-premises restrictions.

e. Seasonal variations.

f. Environmental control.

2. Work Stages: Indicate important stages of construction for each major portion of the Work, including, but not limited to, the following:

a. Subcontract awards.

b. Submittals.

c. Purchases.

d. Mockups.

e. Fabrication.

f. Sample testing.

g. Deliveries.

h. Installation.

i. Tests and inspections.

j. Adjusting.

k. Curing.

l. Building flush-out.

m. Startup and placement into final use and operation.

n. Commissioning.

3. Construction Areas: Identify each major area of construction for each major portion of the Work. Indicate where each construction activity within a major area must be sequenced or integrated with other construction activities to provide for the following:

a. Structural completion.

b. Temporary enclosure and space conditioning.

c. Permanent space enclosure.

d. Completion of mechanical installation.

e. Completion of electrical installation.

Spotsylvania County, VA 013200 - 6

f. Substantial Completion.

H. Milestones: Include milestones indicated in the Contract Documents in schedule, including, but not limited to, the Notice to Proceed, Substantial Completion, and Final Completion following interim milestones:

I. Cost Correlation: Superimpose a cost correlation timeline, indicating planned and actual costs.

On the line, show planned and actual dollar volume of the Work performed as of planned and actual dates used for preparation of payment requests.

1. See Section 012900 "Payment Procedures" for cost reporting and payment procedures.

J. Upcoming Work Summary: Prepare summary report indicating activities scheduled to occur or commence prior to submittal of next schedule update. Summarize the following issues:

1. Unresolved issues.

2. Unanswered Requests for Information.

3. Rejected or unreturned submittals.

4. Notations on returned submittals.

5. Pending modifications affecting the Work and the Contract Time.

K. Acceptability

1. Submit the CPM schedule submittals, as specified, and resubmit as needed, until they are in compliance with Contract requirements.

2. The Engineer's review of the Contractor's construction schedule submittals will only be for conformance with the Contract requirements – including but not limited to contract time and work sequences specified in the contract documents. The Engineer's review of the schedule shall not include the Contractor's means and methods of construction or safety. The Engineer's concurrence, acceptance, or approval of the Contractor's schedule submittals will not relieve the Contractor from responsibility for complying with the Contract Scope, Contract Time, or any other contract requirement. Any indication of concurrence, acceptance, or approval of the Contractor's schedule will only indicate a general conformance with the Contract Requirements.

3. Engineer's review of the Contractor's construction schedule submittals shall not relieve the Contractor from responsibility for any deviations from the Contract Documents unless the Contractor has in writing called Engineer's attention to such deviations at the time of submission and Engineer has given written concurrence to the specific deviations, nor shall any concurrence by the Engineer relieve Contractor from responsibility for errors and omissions in the submittals. Concurrence of the CPM Activity Network by the Engineer is advisory only and shall not relieve the Contractor of responsibility for accomplishing the Work within the Contract completion date(s).

4. Concurrence, acceptance, or approval of the Contractor's CPM schedule by the Engineer in no way makes the Engineer an insurer of the CPM schedule's success, nor liable for time or cost overruns resulting therefrom.

5. Failure to include any element of work required for the performance of this Contract will not excuse the Contractor from completing all Work required within the Contract completion date(s), notwithstanding the review of the network by the Engineer.

6. CPM schedules that contain activities with negative float, or which extend beyond the contract completion date, will not be acceptable.

Spotsylvania County, VA 013200 - 7

7. Except where earlier completions are specified, CPM schedules which show completion of all work prior to the contract completion date may be indicated; however, in no event shall they constitute a basis for claim for delay by the Contractor.

L. Contractor's Construction Schedule Updating: At monthly intervals, update schedule to reflect actual construction progress and activities. Issue schedule one week before each regularly scheduled progress meeting.

1. Revise schedule immediately after each meeting or other activity where revisions have been recognized or made. Issue updated schedule concurrently with the report of each such meeting.

2. Include a report with updated schedule that indicates every change, including, but not limited to, changes in logic, durations, actual starts and finishes, and activity durations.

3. As the Work progresses, indicate Final Completion percentage for each activity.

Activities shall not be considered to be complete until they are in fact 100 percent complete.

4. Submit a narrative report based on the CPM schedule evaluation, in a format agreed upon by the Contractor and the Engineer. The report shall include a description of the progress during the previous period in terms of completed activities, an explanation of each activity which is showing a delay, a description of problem areas, current and anticipated delaying factors and their estimated impact on performance of other activities and completion dates and an explanation of corrective action taken or proposed.

M. Recovery Schedule: When periodic update indicates the Work is 14 or more calendar days behind the current approved schedule, submit a separate recovery schedule indicating means by which Contractor intends to regain compliance with the schedule. Indicate changes to working hours, working days, crew sizes, equipment required to achieve compliance, and date by which recovery will be accomplished.

N. The contract completion time will be adjusted only for causes specified in this Contract. In the event the Contractor requests an extension of any contract completion date, the Contractor shall furnish such justification and supporting evidence as the Engineer may deem necessary to determine whether the Contractor is entitled to an extension of time under the provisions of this Contract. The Engineer will, after receipt of such justification and supporting evidence, make findings of fact and will advise the Contractor in writing thereof. If the Engineer finds that the Contractor is entitled to any extension of any contract completion date, the Engineer’s determination as to the total number of days extension shall be based upon the currently approved CPM schedule and on all data relevant to the extension. Such data shall be included in the next updating of the schedule. Actual delays in activities which, according to the CPM schedule, do not affect any contract completion date shown by the critical path in the network will not be the basis for a change therein.

O. Distribution: Distribute copies of approved schedule to Engineer, Owner, separate contractors, testing and inspecting agencies, and other parties identified by Contractor with a need-to-know schedule responsibility.

1. Post copies in Project meeting rooms and temporary field offices.

2. When revisions are made, distribute updated schedules to the same parties and post in the same locations. Delete parties from distribution when they have completed their assigned portion of the Work and are no longer involved in performance of construction activities.

Spotsylvania County, VA 013200 - 8

1.8 STARTUP CONSTRUCTION SCHEDULE

A. Gantt-Chart Schedule: Submit startup, horizontal, Gantt-chart-type construction schedule within the time specified in the General Conditions.

B. Preparation: Indicate each significant construction activity separately. Identify first workday of each week with a continuous vertical line. Outline significant construction activities for first 90 calendar days after Notice to Proceed. Include skeleton diagram for the remainder of the Work and a cash requirement prediction based on indicated activities.

1.9 GANTT-CHART SCHEDULE REQUIREMENTS

A. Gantt-Chart Schedule: Submit a comprehensive, fully developed, horizontal, Gantt-chart-type, Contractor's Construction Schedule within the time specified in the General Conditions.

1. Base schedule on the startup construction schedule and additional information received since the start of Project.

B. Preparation: Indicate each significant construction activity separately. Identify first workday of each week with a continuous vertical line.

1.10 CPM SCHEDULE REQUIREMENTS

A. CPM Schedule: Prepare Contractor's Construction Schedule using a time-scaled CPM network analysis diagram for the Work.

1. Develop activities in sufficient time to submit CPM schedule within the time specified in the General Conditions, so it can be accepted for use no later than 14 calendar days after date established for the Notice to Proceed.

a. Failure to include any work item required for performance of this Contract shall not excuse Contractor from completing all work within applicable completion dates.

2. Conduct educational workshops to train and inform key Project personnel, including subcontractors' personnel, in proper methods of providing data and using CPM schedule information.

3. Establish procedures for monitoring and updating CPM schedule and for reporting progress. Coordinate procedures with progress meeting and payment request dates.

4. Use "one workday" as the unit of time for individual activities. Indicate nonworking days and holidays incorporated into the schedule to coordinate with the Contract Time.

Spotsylvania County, VA 013200 - 9

B. CPM Schedule Preparation: Prepare a list of all activities required to complete the Work. Using the startup network diagram, prepare a skeleton network to identify probable critical paths.

1. Activities: Indicate the estimated time duration, sequence requirements, and relationship of each activity in relation to other activities. Include estimated time frames for the following activities:

a. Preparation and processing of submittals.

b. Mobilization and demobilization.

c. Delivery.

d. Fabrication.

e. Utility interruptions.

f. Installation.

g. Testing and inspection.

h. Commissioning.

i. Punch list and Final Completion.

j. Maintenance of existing facilities.

k. Contract milestones.

2. Critical Path Activities: Identify critical path activities, including those for interim completion dates. Scheduled start and completion dates shall be consistent with Contract milestone dates.

3. Processing: Process data to produce output data on a computer-drawn, time-scaled network. Revise data, reorganize activity sequences, and reproduce as often as necessary to produce the CPM schedule within the limitations of the Contract Time.

4. Format: Mark the critical path.

5. Cost- and Resource-Loading of CPM Schedule: Assign cost to construction activities on the CPM schedule. Do not assign costs to submittal activities. Obtain Engineer's approval prior to assigning costs to fabrication and delivery activities. Assign costs under main subcontracts for testing and commissioning activities, operation and maintenance manuals, punch list activities, Project record documents, and demonstration and training, in the amount of 3 percent of the Contract Sum.

a. Each activity cost shall reflect an appropriate value subject to approval by Engineer.

b. Total cost assigned to activities shall equal the total Contract Sum.

c. Resource loading may be in person hours or person days and must include time for all staff including subcontractors.

C. Contract Modifications: For each proposed contract modification and concurrent with its submission, prepare a time-impact analysis using a network fragment to demonstrate the effect of the proposed change on the overall Project schedule.

D. Initial Issue of Schedule: Prepare initial network diagram from a sorted activity list indicating straight "early start-total float." Identify critical activities. Prepare tabulated reports showing the following:

1. Contractor or subcontractor and the Work or activity.

2. Description of activity.

3. Main events of activity.

4. Immediately preceding and succeeding activities.

Spotsylvania County, VA 013200 - 10

5. Early and late start dates.

6. Early and late finish dates.

7. Activity duration in workdays.

8. Total float or slack time.

9. Average size of workforce.

10. Dollar value of activity (coordinated with the schedule of values).

E. Schedule Updating: Concurrent with making revisions to schedule, prepare tabulated reports showing the following:

1. Identification of activities that have changed.

2. Changes in early and late start dates.

3. Changes in early and late finish dates.

4. Changes in activity durations in workdays.

5. Changes in the critical path.

6. Changes in total float or slack time.

7. Changes in the Contract Time.

1.11 REPORTS

A. Daily Construction Reports: Prepare a daily construction report recording the following information concerning events at Project site:

1. Date and number of days of work to date, relative to contract time.

2. List of subcontractors at Project site.

3. List of separate contractors at Project site.

4. Approximate count of personnel at Project site.

5. Equipment at Project site.

6. Material deliveries.

7. High and low temperatures and general weather conditions, including presence of rain or snow.

8. Testing and inspection.

9. Accidents.

10. Meetings and significant decisions.

11. Unusual events.

12. Stoppages, delays, shortages, and losses.

13. Meter readings and similar recordings.

14. Emergency procedures.

15. Orders and requests of authorities having jurisdiction.

16. Change Orders received and implemented.

17. Services connected and disconnected.

18. Equipment or system tests and startups.

19. Partial completions and occupancies.

20. Substantial Completions authorized.

B. Material and Equipment Location Reports: At monthly intervals, prepare and submit a comprehensive list of materials and equipment delivered to, stored at, and maintained at Project site. List shall be cumulative, showing materials and equipment previously reported plus items recently delivered. Include with list a statement of progress on and delivery dates for materials

Spotsylvania County, VA 013200 - 11 or items of equipment fabricated or stored away from Project site. Indicate the following categories for stored materials:

1. Material and equipment stored prior to previous report and remaining in storage.

2. Material and equipment stored prior to previous report and since removed from storage and installed.

3. Material and equipment stored following previous report and remaining in storage.

4. Exercise and rotation logs for equipment, as applicable.

C. Site Condition Reports: Immediately on discovery of a difference between site conditions and the Contract Documents, prepare and submit a detailed report. Submit with a Request for Information. Include a detailed description of the differing conditions, together with recommendations for changing the Contract Documents.

D. Unusual Event Reports: When an event of an unusual and significant nature occurs at Project site, whether or not related directly to the Work, prepare, and submit a special report. List chain of events, persons participating, responses by Contractor's personnel, evaluation of results or effects, and similar pertinent information. Advise Owner in advance when these events are known or predictable.

1. Submit unusual event reports directly to Owner within one working day of an occurrence.

Distribute copies of report to parties affected by the occurrence.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

END OF SECTION 013200

Spotsylvania County, VA 013200 - 12

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©2023 CDM Smith 257221-266462 All Rights Reserved October 2023

Motts Run WTP Expansion & Rehabilitation - Phase 1 Construction Progress Documentation Spotsylvania County, VA 013200 - 13 Rev for Addendum 4

013200 Construction Progress Documentation ‐ Schedule of Constraints, Outages, and Sequencing Item Category Topic/Area Description Notes Actions

1 OUTAGE, SEQUENCING 1 Installation of screen #4; BFV replacement

Maximum 30‐day outage permitted Coordinate use of Reservoir Pumps #5/#6 to maintain flow with County Work to be performed during low‐demand period outside spawning season limitations from November 2024 to Feb‐ ruary 2025 Consider screen and valves as long‐lead items Procure divers for installing screen Assume existing screen rails to be non‐functional All valves should be replaced at the same time Consider stop logs for screen area dewatering Remove mud and debris for screen structure at river

"pothole" MV feeders on WTP side of River Road to determine instal‐ lation condition (direct bury versus conduit and/or duct bank)

2 SEQUENCING 1 Replacement pump installa‐ tion; conversion from MV to LV

Pump installation one at a time with sequence of #3, #4, #1, #2 Electrical building construction complete, and equipment energized prior to pump installation No constraints on Pump #5/#6 motor replacement except during outage for Item 1 Consider line stop to replace BFLG with BFV at pump #3 discharge Consider electrical gear and pumps as long‐lead items

(1) Install transformers XFMR‐RWA and XFMR‐RWB, New Electrical Building and equipment , including ductbank from the transformers to new LVSWGR‐RW. Test and make ready for operation.

(2) Deenergize Bus A of the existing MVCC‐R.

(3) Provide temporary feeders from existing. MVCC‐R‐A to new XFMR‐RWA to power the new electrical building, test and make ready for operation. (4) Power newly installed 480V pumps and mo‐ tors from the new LVSWGR‐RW.

(5) Once all MV loads fed from Ex. MVCC‐R are transitioned to LVSWGR‐RW, demolish Ex. MVCC‐R‐B, and replace with a MV circuit breaker to power XFMR‐RWB.

(6) Install new feeders from the new MV circuit breaker to XFMR‐ RWB. Test and make ready for operation.

(7) Feed the low voltage new LVSWGR‐RW from XFMR‐RWB.

(8) Demolish Ex. MVCC‐R‐A, and temporary feeder on Bus A and replace with a MV circuit breaker to power XFMR‐RWA. (9) Install new feeders from the new MV circuit breaker to XFMR‐RWB. Test and make ready for operation.

(10) Energize low volage equipment as shown on the design draw‐ ings.

3 CONSTRAINT 1 Reservoir magmeter re‐ placement

Requires line‐stop and line draining Contractor cannot perform work during Item #1 or Item #4 Contractor cannot perform work should Reservoir or River be in a flood conditions Contractor must submit a written plan for Owner and Engi‐ neer review and approval Maximum shutdown time with line‐stop in place is 10 cal‐ endar days

4 CONSTRAINT, OUTAGE 1 Installation of BFV at Pump Station dis‐ charge header

Requires line‐stop and partial line draining Contractor cannot perform work during Item #1 or Item #3 Contractor cannot perform work should Reservoir or River be in a flood conditions Contractor must submit a written plan for Owner and Engi‐ neer review and approval For the line‐stop for the Pump Station discharge header valve installation, work can only be performed during a 4‐ hour outage

©2023 CDM Smith 257221-266462 All Rights Reserved October 2023

Motts Run WTP Expansion & Rehabilitation - Phase 1 Construction Progress Documentation Spotsylvania County, VA 013200 - 14 Rev for Addendum 4

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SPECIAL TERMS AND CONDITIONS FOR FEDERALLY-FUNDED TRANSACTIONS

As the County’s financial contribution will include use of the County’s Federal Fiscal Year 2022 and 2023 Environmental Protection Agency’s (EPA) Community Project Funding (CPF) grant awards, Offeror(s) receiving these funds will be required to comply with the following:

EPA CPF – USE OF FUNDS

Contractor understands and agrees that the funds disbursed under the County’s allocation of CPF may only be used in compliance with federal cross-cutting requirements as well as other applicable laws as provided in EPA’s Community Grants Program Final Implementation Guidance

The Contractor will determine prior to engaging in any project using this assistance that it has the institutional, managerial, and financial capability to ensure proper planning, management, and completion of such project.

EPA CPF - COMPLIANCE WITH FEDERAL LAW REGULATIONS AND EXECUTIVE ORDERS

Federal financial assistance received under EPA’s CPF will be used to fund a portion of this project. The Contractor will comply with all applicable Federal laws, regulations, executive orders, policies, terms, conditions, procedures, and directives. Contractor shall provide for such compliance by other parties in any agreements it enters into with other parties relating to this award.

Federal regulations applicable to this award include, without limitation, the following:

A. Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards - This contract will be subject to the requirements of the Uniform Administrative Requirements, Cost Principles and Audit Requirements for Federal Awards; Title 2 CFR, Parts 200 and 1500. 2 CFR 1500.2, Adoption of 2 CFR Part 200, states the Environmental Protection Agency adopts the Office of Management and Budget (OMB) guidance Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards to Non-Federal Entities (subparts A through F of 2 CFR Part 200), as supplemented by 2 CFR Part 1500, as the Environmental Protection Agency (EPA) policies and procedures for financial assistance administration. 2 CFR Part 1500 satisfies the requirements of 2 CFR 200.110(a) and gives regulatory effect to the OMB guidance as supplemented by 2 CFR Part 1500. This award is also subject to applicable requirements contained in EPA programmatic regulations located in 40 CFR Chapter 1 Subchapter B.

B. Universal Identifier and System for Award Management (SAM), 2 C.F.R.