21R1339 Note 9.pdf
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- Solicitation number
- N6274221R1339
About this file
This document contains questions and answers related to a solicitation for a water well field project on Guam. The solicitation seeks the construction of a water well system including wells, transmission lines, water treatment, storage, pumping facilities, power and communications infrastructure. Key project elements include two well sites with generator buildings and other sites with electrical buildings. The questions and answers provide clarification on technical specifications, well testing parameters, casing requirements, and anomaly detection target sizes. Pricing line items include additional exploratory borings and grouting. The solicitation number is N6274221R1339 and was issued by the Department of the Navy Naval Facilities Engineering Command for the FY18 MCON P-103 Water Well Field at the US NAVSUPACT ANDERSEN in Guam.
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Other files
| File | Type | Posted |
|---|---|---|
| 21R1339_AMD5.pdf | ||
| 21R1339 Note 11.pdf | ||
| 21R1339 Note 10.pdf | ||
| 21R1339_AMD4.pdf | ||
| 21R1339_AMD3.pdf | ||
| 21R1339 Note 8.pdf | ||
| 21R1339_AMD2.pdf | ||
| 21R1339_AMD2_Drawings.pdf | ||
| 21R1339 Note 7.pdf | ||
| 21R1339 Note 6.pdf | ||
| 21R1339 Note 5.pdf | ||
| 21R1339_AMD1.pdf | ||
| 21R1339_AMD1_Drawings.pdf | ||
| P103 SV Sign-in.pdf | ||
| 21R1339 Note 4.pdf | ||
| 21R1339 Note 3.pdf | ||
| 21R1339 Note 2.pdf | ||
| 21R1339 Note 1.pdf | ||
| 21R1339-RFP.pdf | ||
| P-103 Water Well Field_Specifications.pdf | ||
| P-103 Water Well Field_DWGS.pdf | ||
| 21R1339-JA_Redacted.zip | ZIP file |
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Text version
Notice No. 9
15 September 2021
PRE-PROPOSAL QUESTIONS & ANSWERS
RFP N62742-21-R-1339
FY18 MCON P-103 WATER WELL FIELD US NAVSUPACT ANDERSEN, GUAM
NOTE: The following questions and answers are provided for INFORMATION ONLY. The RFP remains unchanged unless it is amended in writing on a Standard Form 30.
80. Ref. Sec 01 50 00 Pg. 5 Para. 3.3 Availability and Use of Utility Services, 3.3.1 Temporary Utilities and 3.3.2 Payment for Utility Services Please provide the electricity and water rates including the cost of connecting, converting, and transferring the utilities to the work for estimating purposes.
ANSWER: The following rates are subject to change.
FY21 Unit costs for Reimbursable customers (ex: Contractors):
Electric: $333.11/MWH Potable Water: $11/KGAL
81. Ref. Sec 40 95 00 Pg. 12 Para. 2.8 Central Station Software The existing central station software in use at the Fena Water Treatment Plant by NAVFAC Marianas shall be modified to provide the communication, programming and control capabilities necessary to support all specified points and functions, plus a minimum expansion of 50 percent of the current number of points, complete with their point database. The central station shall be online at all times and shall perform all required functions as specified.
Please clarify if any additional software, software updates or additional software licenses will be required at the Fena Water Treatment Plant to meet the minimum expansion increase 50% of current number of points. Or if just programming and configuration of the existing central software will be required. If additional software upgrades or licenses are required, please provide in detail what will be required.
ANSWER: Response deferred.
82. Ref. Dwg# E-511 Electric Manhole Note. 1 Electric Manhole Note 1. Treat interior and exterior surfaces with a cement based on heavy duty waterproof coating to form a liquid tight seal.
DEPARTMENT OF THE NAVY
NAVAL FACILITIES ENGINEERING SYSTEMS COMMAND, PACIFIC
258 MAKALAPA DRIVE, SUITE 100
JOINT BASE PEARL HARBOR HICKAM, HAWAII 96860-3134
All precast concrete manholes require an open sump where water can exit and enter the concrete manholes. In addition, the Section 33 71 02, Part 2.13.2.4 Joints, require seal watertight gasket joints conforming to ASTM C990M. Please confirm the heavy duty waterproof coating on the interior and exterior manhole surfaces can be eliminated due to the open sump and the gasket joint seal.
ANSWER: Provide heavy duty waterproof coating as required on Drawing E-511.
83. Ref. Dwg# E-541 Telecom Manhole Note. 3 Telecom Manhole Note 3. The precast concrete company must be certified by the National Precast Concrete Association’s (NPCA) plant certification program prior to and during production of this product for this project.
The local precast company on Island does NOT meet the certified requirement by NPCA.
However, the local precast company on island does meet the requirements of Section 2.13.2 including ASTM C857. In addition, we did not find the NPCA certification required for electrical manholes. Please confirm if the precast concrete plant certification by NPCA is required for telecom AND electrical manholes.
ANSWER: The precast concrete plant certification by NPCA is required only for telecom manholes.
84. Ref. Dwg# E-541 Telecom Manhole Note. 4 Telecom Manhole Note 4. Treat interior and exterior surfaces with a cement based on heavy duty waterproof coating to form a liquid tight seal.
All precast concrete manholes require an open sump where water can exit and enter the concrete manholes. In addition, the Section 33 71 02, Part 2.13.2.4 Joints, require seal watertight gasket joints conforming to ASTM C990M. Please confirm the heavy duty waterproof coating on the interior and exterior manhole surfaces can be eliminated due to the open sump and the gasket joint seal.
ANSWER: Provide heavy duty waterproof coating as required on Drawing E-541.
85. Ref. Drawing E-511 Note 3 Note 3, Manhole walls should be backfilled with properly compacted select granular fill. Please provide a detail including the limits horizontal limits of the electrical manhole backfill. Also please confirm if granular wall backfill is required for the telecom manholes Type 73 shown E- 541 or Type 72 shown on E-542.
ANSWER: The backfill limits extend 305mm from manhole wall. See Specification Section 33 71 02 Paragraph 3.5.2. Telecom manhole walls must also be backfilled with properly compacted select granular fill, see forthcoming amendment.
86. Notice No. 5, RFI # 21 Ref. Section 1.2.4.2. Size of test wells Test wells changing from 100mm to 200mm does not allow the test well to be converted to 12” production well.
Please consider abandonment and drilling new production well nearby in lieu of conversion.
ANSWER: The response to RFI Question 21 was revised and issued under Notice 7. Note that the test borehole must be enlarged to the diameter of the final production well.
87. Notice No. 5, RFI # 26 Ref. Section 3.2.2, d. DTW measurement Answer does not solve the problem of foam needing to settle.
Are we to include standby and no drilling for 48 hours after water is first reached?
ANSWER: As stated in Notice 5, “An approved defoamer may be used if necessary.”
88. Specification Section 33 11 13 sub part 3.3.2, a Plumbness and alignment testing There are several comments and changes regarding plumbness and alignment that are not consistent with AWWWA A-100 as specified.
Will plumbness and alignment including testing that meets the AWWA A100 be allowable if slightly different than what is presented in the specs.
ANSWER: No.
89. Notice No. 5, RFI # 29 Ref. Section 3.3.1.1. Pump test We understand that the pump test will be performed in the open hole of aquifer section but are not clear on what is the minimum depth of casing and seal or set into the aquiclude or temporary casing seated at top stratum being tested as noted in section 1.2.4.2.
Please provide estimated depths to aquiclude or depth that casing and or seal is likely to be required in test well.
ANSWER: Specification Section 33 11 13 Paragraph 1.2.4.2 was amended. See Amendment 0002.
90. Specification Section 33 11 13 sub part 3.2.5 a Casing string The ends of the casing are to be prepared for welding with 50 mm welding collars. Bell & spigot welded ends shall not be allowed.
Plain end pipe with beveled ends and welded with full penetration weld is an equal and AWWA approved method to use of weld collars when welding casing. Will that be acceptable?
ANSWER: No.
91. Specification Section 33 11 13 sub part 3.5.1, a & d Abandonment of the well
a. How should we quantify when well development is complete? No parameters are provided, typically this is done by the hour as every well is different depending on drilling method. How should we quantify costs and the need to abandon test wells that may not meet the production requirements? How will additional needed test wells be handled if this were to happen?
b. Please provide any well logs of other water supply wells nearby on the island to similar depth.
ANSWER:
a. See Specification Section 33 11 13 Paragraph 3.3.1.3 Borehole Pump Test. The result of the borehole pump test will determine if the borehole is suitable for conversion to production well.
b. Well logs will not be provided.
92. Ref. Specification Section 31 23 00.00 20 – Excavation and Fill & Price Proposal Schedule page 3 of 5. CLIN 0001AB & CLIN 0001AC Additional exploratory holes & grouting.
a. Please confirm if our understanding is correct that CLINs 0001AB & 0001AC additional exploratory boring and grouting will suffice the boring and grouting requirement on specification 31 23 00.00 20 sub-item 3.5.1.
b. Please advise approximate number of boring locations for CLINs 0001AB & 0001AC
ANSWER:
a. Confirmed.
b. The probing spacing requirements are stated in Specification Section 31 23 00.00 20
Paragraph 3.5.1. Base proposal on the quantities provided in the Price Proposal Schedule.
93. Ref. Price Proposal Schedule – 0001AD; and UFGS Specification 01 57.19.03 Section 1:
Paragraph 1.4 Anomalies; Page 308 of PDF or Page 3 of Specification.
RFP states - “The basis for SLIN 0001AD is the price to perform full clearance ahead of construction for Munitions and Explosives of Concern (MEC) / Material Potentially Presenting an Explosive hazard (MPPEH) to a Target of Interest of 2.5 inch grenade.” The Spec Section 01 57 19.03 states “1.4 Anomalies: An anomaly is defined as a metal item with any one dimension equal to the [20 mm projectile, project’s approved Target of Interest (TOI)] or larger.”
Which “Target of Interest” is to be used for this solicitation, the 20 mm projectile or 2.5 inch grenade?
ANSWER: The RFP was revised to 20 mm projectile, see Amendment 0001.
End of Notice
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