"Winnecomac," the pleasant lands.
Wikipedia says the name comes from the Secatogue, who called their northern lands in the center of the island Winnecomac, meaning "pleasant lands," for the flat, rich farmland and oak forest; early spellings include "Comac." The CDP covers 12.0 square miles, all land, in both the Town of Huntington and the Town of Smithtown, and like most unincorporated Long Island places it has no walkable Main Street.
The Census Bureau's latest five-year survey counts about 11,900 homes, with a median year built of 1964. 28% went up in the 1950s, 1% before 1940, and 15% after 1980. 93% are single-family detached houses, and 94% are owner-occupied.
So a typical house here has drain and water lines around 62 years old unless they've been replaced. Slow drains in several fixtures, a gurgling floor drain or rusty water from one tap are signs to have the main line and supply piping checked.
Oil to gas means new gas piping.
The ACS shows 74% of homes heat with utility gas and 20% with fuel oil. Switching means properly sized gas piping to the new equipment, and often to the water heater, range and dryer. We do the gas line work. We don't sell or deliver oil.
Cesspools and septic, mostly.
Laying Suffolk County's sewer-district map over the Census boundary puts only small pieces of Commack in a county sewer district: the Hauppauge Industrial Sewer District (about 2%) and the Hauppauge Municipal Sewer District (about 1%), roughly 3% of the area in all. Most homes rely on cesspools or septic systems. We clear the line from the house to the system, but a full or failing cesspool is a job for a cesspool or septic contractor; we don't do cesspool work, and we don't install septic systems.
Little mapped flood risk.
FEMA's current flood map puts none of Commack in the high-risk flood zone.
Water: Suffolk County Water Authority (SCWA).
EPA's service-area map puts about 76% of residents, with about 21% on the Greenlawn Water District and 3% on the Smithtown Water District on the Suffolk County Water Authority (SCWA); your bill is the final word. In EPA's UCMR 5 testing, the main supplier's highest single PFOA/PFOS result was 17 parts per trillion. EPA's 4 ppt limits apply as a running annual average starting in 2029, so one high sample is not a violation, but it's the kind of number a carbon filter is sized against. For a leak at the curb or in the street, call your water supplier (SCWA: (631) 698-9500). For anything on your side of the meter, call us.
Permits.
Commack is an unincorporated hamlet, so plumbing permits go through the the Town of Huntington or the Town of Smithtown, depending on which side of the town line you live on.
