Power line and substation distance check (free)
- Address and parcel
- Transmission lines in range, by voltage
- Distance from the house and lot line
- Nearest substations
- What the distances mean for magnetic fields
- Easements to look for in the title
Home and land buyers checking for high-voltage lines
What address do you want to check?
Free check of the high-voltage transmission lines and substations near any US address, with distances and what the magnetic field numbers mean.
- Free to read
- No sign-up until the draft
- Hands off to the right door
ePlan fills in
- Parcel
- Transmission lines nearby
- Line voltage
- Substations
- Distance to each
How it works
Power line and substation distance check, from one answer
- Enter an address and how far out to look.
- ePlan maps every transmission line and substation in range and measures the distances.
- Siting a project near the grid? Start a NEPA categorical exclusion memo.
What you get
Power line and substation distance check and 1 more document
The check is free. The paperwork after it is drafted at the Categorical exclusion memo (or short EA) in the agency's format door.
NEPA categorical exclusion memo
- Project description
- Categorical exclusion relied on
- Extraordinary circumstances review
- Determination
From public data
What ePlan fills in, and from where
- Transmission lines and voltageHIFLD electric power transmission lines
- SubstationsOpenStreetMap power features
- Parcel boundaryRegrid parcel data (county assessor)
- Aerial viewUSDA NAIP imagery
1.8 milligauss
is the magnetic field 200 feet from a 230 kV transmission line, down from 57.5 right beside it
Source: NIEHS, citing the World Health Organization
Ready for the paperwork?
Draft a NEPA categorical exclusion memo or short environmental assessment for a federally funded project, in the agency's format. Free to read.
Questions
Power Line Map: what people ask
Where does transmission line data come from?
EIA points to the Homeland Infrastructure Foundation-Level Data (HIFLD) geoplatform for transmission line data and shapefiles. EIA and HIFLD do not publish the locations of electric substations.
Is it safe to live near power lines?
NIEHS says 1990s studies found a possible but weak link between power-line magnetic fields and childhood leukemia, and the few adult studies show no evidence of a link. Field strength drops fast: 57.5 milligauss beside a 230 kV line, 7.1 at 100 feet, 1.8 at 200 feet.
What is a categorical exclusion?
Under NEPA, a category of actions a federal agency has determined normally does not significantly affect the human environment. Projects that fit one skip a full environmental assessment. Each agency lists its own.
The rules this door follows
Related doors
Other projects people start from here
Towns, nonprofits and applicants who need a federal sign-off
Categorical exclusion memo (or short EA) in the agency's format
Where will the project happen?
Homeowners and landowners checking their lines
Property Line Map
What's the address of your property?
Homeowners and owner-builders pulling a permit
Permit Drawings for a Deck or Remodel
What are you building or remodeling?
Clerks of towns, counties and special districts
Records retention policy outline
Which state and type of government?
Event organizers, venue managers and small business owners
Occupant load calculation
Where is the venue?
California · CEQA
CEQA exemption finder
What is the project, and where?
Power Line Map: check it free
Answer it and ePlan opens the Categorical exclusion memo (or short EA) in the agency's format door with your answer filled in.