Glass

Likely

Most likely crushed into gravel and used in town. Ceramics go in the same bin, which rules out the bottle-to-bottle route.

Where it goes

Bin

Glass bottles, jars, and ceramics are collected together.

Press

Recycling center

Stockpiled. The permit caps on-site storage at 420 tons, so piles have to move eventually.

State data

Crushed

Processed glass aggregate, a gravel substitute NHDES certified for road construction in 1999.

State data

Town projects

Road base, pipe bedding, fill behind retaining walls. Likely never leaves town.

Inference

Solid border: confirmed. Dashed: likely. Dotted: open.

The numbers

Tons, 2023: No glass line on the town's revenue sheet Town data
Revenue, 2023: $0 Town data
Disposal avoided: About $85 per ton, the rough Northeast tipping fee, for whatever gets crushed instead of buried Inference
The route it can't take: NRRA pools glass from 40+ member towns and ships it to 2M Ressources near Montreal for fiberglass insulation. A stream with ceramics in it can't join. State data

What the records show

The recycling center takes glass bottles, jars, and ceramics in one stream. That comes from a Ledger-Transcript column co-written by the center's manager in March 2026. Ceramics don't melt like bottle glass, so a mixed stream is disqualified from remelting no matter where it ships. This is a sorting choice, not a distance problem.

Real bottle-glass recycling exists in New Hampshire. The Northeast Resource Recovery Association pools glass from more than 40 member towns and ships it to 2M Ressources near Montreal, where it becomes fiberglass insulation. Peterborough's stream can't take that route as long as ceramics are in it.

The almost certain destination is processed glass aggregate: glass crushed into a gravel substitute that NHDES certified for road construction in 1999. It goes under roads, around pipes, and behind retaining walls. The BCEP district in Pittsfield and the town of Warner, which has been grinding glass since 1989, run comparable programs.

Nothing public says the glass ever ships out. The revenue sheet has no glass line at all, which fits a pile that gets crushed and used locally rather than sold. The permit's 420-ton storage cap means the material has to move at some point. Stockpile, then crush, is the pattern that fits.

One caution from across the border: Vermont's Chittenden Solid Waste District was investigated over an 11,538-ton pile of crushed glass it had described as embankment stabilization. A pile only counts as recycling if it goes somewhere. (Reported in Vermont press; a citation will be added to the sources list.)

Where this site lands: crushing glass into aggregate still counts. It displaces mined gravel and it avoids roughly $85 a ton in disposal. It's just not the bottle-to-bottle story people picture.

Still open

Glass tonnage, and when the pile last moved. A call to the center manager is on the list.
Whether glass appears in the state's Annual Facility Reports at all. The form tracks material that moves, so glass used on site may be invisible in it. Thin data would itself support the on-site conclusion.
A look behind the center for the pile.

Tracked on the open questions page.

Sources

#3 Services column on free materials at the recycling center, March 24, 2026. Monadnock Ledger-Transcript (Huberman and Smith) Press
#4 Facility profile, facility 3184. NHDES OneStop State data
#7 Northeast Resource Recovery Association / NH Recycles. NRRA State data
#10 Solid waste. NHDES State data
#1 Recycling center page. Town of Peterborough Town data

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