GL- 2027-09 Addendum No 2 8-04-2026-Parker Terrace - Final.pdf

ADDENDUM No. 2 August 4, 2026

THE TOWN OF GLASTONBURY

PARKER TERRACE WASTWATER PUMPING STATION UPGRADES

ADDENDUM NO. 2

The attention of bidders submitting proposals for the above-referenced project is called to the following

Addendum to the specifications. The items set forth herein, whether of omission, addition, substitution or other change, are all to be included in and form a part of the proposed Contract Documents for the work. Bidders shall acknowledge this Addendum in the Bid Proposal by initialing and dating

Addendum number on the Form of General Bid.

SPECIFICATIONS

None

DRAWINGS

None

QUESTIONS AND ANSWERS

1. In Specification Section 40 91 00 – Field Instrument List, calls out for (3) Check Valve Limit

Switches for Pumps #1, 2 & 3; however, there are no specifications provided for these Limit

Switches. Please provide the specifications for these Limit Switches.

Answer: Limit switches to be provided by check valve supplier, in accordance with check valve manufacturer’s recommendations. Contractor shall provide wiring and conduit to limit switches per manufacturer’s requirements.

2. Plan C901 chain link fabric detail shows 8 ga. core 1” mesh, Section 323113 - 2.01 calls out 2” mesh, which is required?

Answer: Comply with chain link fence fabric and gauge requirements shown on sheet

C901.

3. Plan C901 chain link framework detail shows bottom tension wire and top & brace rails, Section

323113 - 2.02 calls out top, brace, bottom & intermediate rails, and tension wire, which is required?

Answer: Comply with chain link fence framework requirements shown on sheet C901

4. Section 323113 - 2.04 calls out Truss Rod Assembly, not shown on plan detail, are they required?

Answer: Truss Rod Assembly is not required

5. Section 321200 - 1.02 calls for 3” of HMA S1 and 2” of HMA S0.5, Plan C904 for commercial driveway shows 3” of HMA S0.375, which is required?

Answer: Refer to Section 32 12 00 1.02: Type 3: Heavy Duty Permanent Pavement with

12-inch process aggregate subbase installed in 2 lifts.

6. We contacted the health department per Plan note 2 on C200 regarding the status of the existing well. Health forwarded the inquiry to the Purchasing department who advised the answer will more than likely be answered via addendum. Please advise.

Answer: Contractor shall abandon existing well in accordance with State of Connecticut Department of Public Health well abandonment requirements. Add the following notes to drawing C200.

Well Abandonment Requirements

1. Comply with section 25-128-57 of the Connecticut General Statutes.

2. Fill the well with bentonite to a depth of approximately 4 feet below ground.

3. Install a cement plug to approximately 1 foot below grade to stabilize the hole.

4. Well abandonment shall be performed by a licensed well driller.

7. Does the Hoist Monorail Beam need to be coated by Duncan Galvanizing – Colorgalv (Umbra), sheet S-301?

Answer: Yes

8. Is the Monorail Hoist XP rated?

Answer: No

9. Per Section 00800 – Supplemental Conditions, SC-6.04 - Owners Protective Liability and SC-6.05-

Builder’s Risk Policy are deleted. Please confirm that the Owner will carry this coverage and

Contractor does not need to obtain Builders Risk coverage or Owners Protective Liability coverage. If by Owner, please provide a copy of the Owners property insurance with endorsements. Additionally, clarify the value of the deductible and who would be responsible for this cost if incurred?

Answer: Refer to supplementary conditions paragraph SC-6.03 e. “Owner’s and

Contractor’s protective liability insurance”, Builder’s risk insurance is not required.

10. We request the following information in relation to the required bypass pumping system:

a. What is the invert elevation of the upstream manhole coming into the pump station?

Answer: 2.6±

b. What is the peak instantaneous flow at the pump station?

Answer: Refer to specification 01 53 50 for Temporary Bypass Pumping System requirements.

c. What would be the allowable surcharge level/elevation in the influent structure that we would be installing the bypass pump suctions? The surcharge is needed due to the depth and configuration of the structure and allowable lift of the Dri-prime pumps, the suctions for the pump suctions needs to be raised and the wet well liquid level/surcharge level will need to raised accordingly.

Answer: Influent structure shall be allowed to surcharge upto six (6’) feet. Exact depth to be determined during shop drawing review. See attached drawings for additional options.

d. Are there any as built plans (profiles) on the existing force main?

Answer: See attached drawings

e. What is the length (LF), material and discharge elevation of the force main back to gravity?

Answer: See attached drawings

11. Is the grass area to the South of the Station driveway available for construction laydown?

Answer: The Town will work with selected Contractor for laydown area on town property.

12. Per section 01 53 50 – Temporary Bypass Pumping System, Part 2.01 D indicates notification and alarm capability for bypass system and part 3.01 B-contractor shall inspect bypass every 2 hours.

Please confirm if the Contractor needs to man the bypass pumping system 24 hours/7 days a week or will manning while contractor is working onsite with monitoring and alarming for periods of time contractor is not working on-site be adequate?

Answer: Bypass pumping system remote monitoring and alarm equipment approved by

Town will be acceptable.

13. Please confirm if concrete encasement is required for the pump discharge lines coming into the new building under the footings and slab.

Answer: No, all piping shall be fully restrained joints or flanged. All flange adapters shall be restrained per specification 40 05 13.53 – 2.10. Maintain 1-foot vertical clearance between top of pipe and bottom of stepped footing.

14. Per specification 26 0533.13 Part 2 Products 2.01 Conduit Applications 2.01 B comply with the most restrictive requirements. 2.01 C thru K list every type of conduit for every area.

With this listing it is unclear on the intent of which type of conduit is to be used in which areas.

Please clarify the conduit types required per area. Drawing EU1 for duct bank conduits list in notes both schedule 40 and schedule 80. On drawing EU1 utility conduit 4-600MCM in 4” conduit. This area is an Eversource area and typically on commercial projects Eversource provides the secondaries from a pole mounted transformer 400 amps and below.

Answer: Conduit type is specified by application area per Section 2.01, Parts C-K, not called out by material on the plans. The contractor may select among the listed acceptable types for each application.

Duct bank conduits shall be 4" Schedule 40 PVC. Schedule 40 PVC applies to the underground/duct bank portion of the run. Conduit shall transition to rigid galvanized steel when emerged from ground as required by electrical specification.

Secondary service and its conduits provided by contractor. Contractor shall coordinate directly with Eversource to confirm utility requirements for the service conduit and conductors from the pole-mounted transformer.

15. We understand that the firewall within the Network Enclosure is included in the integrator’s scope of supply. Could you please provide the required firewall specifications?

Answer: Owner shall provide fiber connection and firewall. Contractor shall provide ethernet switch as specified in contract documents with the exception that fiber connectivity to the switch is not required.

16. Drawing M301 – Note 4 states all miscellaneous metals and hardware shall be type 316 SS.

a. The platform, grating, ladder and railing are designed as aluminum on the structural drawings. Please clarify if the platform misc. metals are to be fabricated from stainless steel per Note 4 or aluminum as stated on structural drawings.

Answer: Platform Support Framing, Grating, Ladder and Rail are all Aluminum 6061-T6 as indicated in the general notes. All fasteners and attachment hardware are to be 316

Stainless Steel. See Section 7 of Structural General notes for additional guidance.

b. Section 40 05 13.53, paragraph 2.08 states bolts and nuts for flanged connections shall be Grade B. Please clarify if the flange sets in the wet well should be stainless steel per

Note 4 or Grade B per Section 40 05 13.53.

Answer: Flange sets within the wet well shall be 316 Stainless Steel

17. The Monorail requested cannot withstand the cantilever as shown on the contract drawings

(approximately 6’-6”). It must have a support point approximately 1’-0” from the end of the

Monorail. Please advise.

Answer: Monorail shall be sized by hoist manufacturer to meet requirements within the contract documents. Include stamped calculations for Monorail sizing with submittal.

18. Drawing M-202 – Clarify if the precast wet well top slab can be removed without internally bracing the structure or over-excavating around the exterior to lessen the soil loading on the existing wet well walls.

Answer: The Contractor shall provide interior lateral bracing of the existing wet well prior to removal of the top section. Submit shop drawing and calculations stamped by

Connecticut PE for approval. See note 1.10 on sheet S001.

19. Section 31 23 19 (Dewatering) requires a submittal on a dewatering system. Have borings been completed at the site to determine groundwater depths and soil characteristics?

Answer: See Geotech report included within Addendum #1

20. Is it the intent of the design that the Generator Connection Box on E-101 to be considered a remote mounted cam Lock Panel? Or Is it a Cam Lock set up that is integral of the MTS? If it is remote mounted, Please provide location on the drawings.

Answer: Cam Lock set shall be integral to MTS

21. Please provide a spec and or part number for the generator receptacle Or Camelot panel model# and location that would be required for the installation.

Answer: Refer to Answer for Question #20. The basis of design is the Trystar GEN 3

Small Wall Mount MTS, 400A, NEMA 3R, with integral cam-lock (PRM) receptacle module built into the MTS enclosure. Location is at the MTS as shown on E101

22. Instrumentation and Control General – Specification 40 93 00, 1.01 overviews the work included for the project. It calls out the instrumentation and Control System Supplier to provide a complete control system including providing all hardware, labor, control panels, instrumentation, programming and configuration of the control system, while also calling out the

Owner’s System Intergrator, NIC Engineering, to provide all programming and configuration work related to the new automation equipment and the Owner’s existing SCADA System.

Please advise if the Instrumentation and Controlsystem Supplier will be providing the PLC and HMI programming for the Main Control Panel and NIC Engineering to provide the Owner’s existing SCADA System Programming.

Answer: Owner Integrator NIC systems shall provide programming of the Main Control

Panel.

ATTACHMENTS

A. Record Drawings

a. Parker Terrace Pump Station Force Main (Sheet 1 of 3) – Dated 10-27-1983

b. Parker Terrace Pump Station Force Main (Sheet 2 of 3) – Dated 10-27-1983

c. Salmon Brook Trunk Sewers and Laterals STA. 40+00 to STA. 50+00 – Dated 2-26-68

d. Salmon Brook Trunk Sewers and Laterals STA. 50+00 to STA. 58+00 – Dated 2-26-68

e. Salmon Brook Watershed Pratt Street Trunk STA. 0+00 to STA 9+31 – Dated 9-4-73

f. Salmon Brook Watershed Pratt Street Trunk STA. 9+31 to STA 19+22 – Dated 9-4-73

g. Tie Card for #2751 Main Street

NOTE: This Addendum consists of 12 pages including above text.

TOWN OF GLASTONBURY

WESTON & SAMPSON ENGINEERS, INC.

END OF ADDENDUM NO. 2

mckennak Line mckennak Text Box See Pratt Street Trunk Sta. 0+00 to Sta. 9+31 Sewer - As-built drawing

Text Box See Salmon Brook Trunk Sewers and Laterals Sta. 40+00 to Sta. 50+00 Sewer - Record drawing

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