# Electrical permit B20-001999 at 75 Elm St, Somerville

Somerville Inspectional Services Division permit B20-001999: issued Aug 3, 2021 for electrical work at 75 Elm St. ? Replace 2" MERV 8 filters with 2" MERV 13 filters in AHU-1, 2, 3, 4, 7 (six filters per unit, W&H vary, angled banks) ? Replace 2" MERV 8 filters with 2" MERV 13 filters in RTU-1 (16 filters, 20x20 ea.) ? Rebalance outdoor air in AHU-1, 2, 3, 4, 5, 7, RTU-1 ? Provide six (6) in unit or duct mounted UV lights for AHU's 1, 2, 3, 4, 7 and RTU-1 ? Provide six (6) duct mounted electric humidifiers for AHU-1, 2, 3, 4, 7 and RTU-1 (nom 30 lbs/hr) ? Provide forty five (45) portable air filtration units for classrooms ? Provide forty five (45) wall mount space CO2 sensors for classrooms, library and kitchen. ? Provide forty five (45) portable humidifiers (nom. 10 lbs/hr); for classrooms ? Retro commission forty five (45) unit ventilators and seven (7) air handlers ? Nurses Suite o Furnish and install a new utility style exhaust fan on the high roof with a discharge stack extending 10.

- Permit number: B20-001999
- Issued: Aug 3, 2021
- Type of work: Electrical (city: Building Permit, Commercial Other)
- Status: Finished (city: Closed)
- Reported cost: $770,013
- ZIP code: Not listed
- All permits at this address: https://nearbypermits.com/somerville/address/75-elm-st/

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Source: Somerville Inspectional Services Division permit data (https://data.somervillema.gov/d/nneb-s3f7), SomerStat, City of Somerville, ODbL 1.0 (https://opendatacommons.org/licenses/odbl/1-0/). Checked 2026-10-08 11:54 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Contains information from Applications for Permits and Licenses (SomerStat, City of Somerville), which is made available here under the Open Database License (ODbL). Database: https://data.somervillema.gov/d/nneb-s3f7 License: https://opendatacommons.org/licenses/odbl/1-0/

Every permit at 75 Elm St: https://nearbypermits.com/somerville/address/75-elm-st/