Vendor_Q_A_0001.pdf

- How tall is each structure? The total height plays a key role in pricing and time spent on site, etc. An estimated height would suffice.

o Heights are in chart

- Quantity of antennas and lines to be swept at each site?

o Antennas and lines are different at each site.

- Do you have any previous inspections and/or photos of the sites?

o No

- Section 5.2 mentions the following must be inspected:

Maximum and minimum basic wind speed without ice.

Maximum and minimum basic wind speed with ice.

Maximum and minimum design ice thickness.

However, this is not typically something that is "inspected" rather this is part of the design process based upon TIA 222 & local building code(s). It can be verified with a structural analysis.

Are you looking for a structural analysis be performed at each of the sites? If so, do you have as-builts available? If not, a rigorous mapping would be required and would be even more in-depth if subterranean exploration was required. Also, Section 5.2 references TIA 222 G yet Exhibit 2 references TIA 222 H as an applicable standard. There are different assessment methods between the two, please confirm which is applicable.

o Due to unforeseen circumstances as-built diagrams and information is not available.

However, each site should have this information at the location. Document the information requested for each site.

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

See Latitude & Longitude

9 Santa Rosa (NSRRY) 38.44067 -122.70456

7 Black Mt (PBMRY) 35.39445 -120.3539

8 School Peak (HSPRY) 36.76013 -121.49122

5 South Fork (LSFRY) 36.40592 -121.49165

6 Picket Peak (KPP) 40.34587 -123.36322

3 Williams Hill (PWHRY) 35.95158 -121.00137

4 Palo Escrito (BPERY) 36.40592 -121.49165

1 Vollmer Peak (CVPRY) 37.884 -122.22323

2 Orleans Mountain (KOM) 41.27872 -123.45315

SITE Latitude Longitude Site Address Location Tower Height (ft)

- 5.3.4.1 are you looking for a formal EMF Survey? This may require sensors be set up and testing take place for more than a single day on site. Or are you looking for basic testing with a wearable meter such as a FieldSense unit?

- 5.3.4.1 Radio Frequency (RF) energy. This includes actual field measurement of not only the USGS owned or leased tower, but also the RF levels that USGS telecommunication employees and the public may be exposed to while driving to the site and while in or on the site compound. The Contractor shall calculate the RF energy if a tower is not in operation, but the audit team feels it may pose a hazard if its RF level exceeds the maximum permissible exposure (MPE) limits.

o No formal EMF survey is required. Basic testing to see if there are any hazardous RF emissions going to or at the site.

- There are references to this being a six (6) site project and a nine (9) site project. Exhibit 1 lists 9 sites. Can you confirm?

o There are 9 sites.