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Massachusetts · Ashland County · Reservoir

Ashland Reservoir

Is the fish you caught here safe to eat? Below is every consumption advisory on file for Ashland Reservoir, by species and size, in plain English — plus what's legal to keep.

1 species with advisories · contaminants: Mercury, PFAS

Massachusetts also has statewide guidance

Massachusetts publishes rules that apply to reservoirs across the state — 1 recommendation covering 1 species — in addition to anything listed for Ashland Reservoir below.

Strictest statewide rule: All Other Species — For women who may become pregnant, pregnant or breastfeeding women, and children under 15: do not eat due to elevated Mercury.

See all Massachusetts statewide guidance →

What's safe to eat from Ashland Reservoir

All Other Species

Mercury PFAS

SizeWhoGuidance
All sizes General population Limit to one meal per month due to elevated Mercury and PFAS.
Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: do not eat due to elevated Mercury and PFAS.

Source: official advisory· updated 2026-07-02

Is it legal to keep?

These are Massachusetts's statewide limits — a water-specific rule may override them. Always verify the current regulations before keeping a fish.

SpeciesSizeDaily limitOpen seasonKeep season
Largemouth Bass 12" min 5 Year-round Same as open
Smallmouth Bass 12" min 5 Year-round Same as open
Northern Pike 28" min 2 Year-round Same as open
Chain Pickerel 15" min 5 Year-round Same as open
Walleye 14" min 5 Year-round Same as open
Inland Trout 3 Year-round Same as open

Official rules: Massachusetts — Massachusetts DFW

Getting on the water

Access points from OpenStreetMap contributors.

About this water

State
Massachusetts
County
Ashland
Type
Reservoir
Location
42.2403, -71.4649
Advisory source
Massachusetts DPH — Freshwater Fish Consumption Advisory List