GOFFSTOWN, NH - Public Service Company of New Hampshire has provided the GRA with data relative to the transmission and power lines which intersect near the proposed location of the building intended to house kindergarten students at the Glen Lake site.

According to PSNH's Mike Motta, the smaller of these is a distribution circuit running west-northwest to east-southeast across the Glen Lake kindergarten site. Motta said it is a 34,500 volt line. 

This smaller distribution circuit intersects two larger, main transmission circuits running south across the Glen Lake kindergarten site, across Elm Street and over Glen Lake to the Greggs Falls substation.  Each of these carries 115,000 volts.

The building intended to house kindergarten students at the Glen Lake site is to be nestled near the intersection of all three circuits.  The total voltage carried at that intersection is 264,500 volts.

There are two main transmission lines (or circuits) running across the lake, each comprised of 3 wires, for a total of 6 wires. The combination of each 3-wire circuit is what carries 115,000 volts.

Electro Magnetic Fields (EMF)

Motta told the GRA that although some studies allege links between EM Fields and leukemia & other forms of cancer, definitive information about EMF is vague, at best.  "Although voltage remains constant, the loading on circuits at any given time is what drives EMF readings", Motto said.  Electro Magnetic fields are measured in milligauss (mG) units.  As high demand at various times increases the loads on a transmission line, the EMF emissions will increase as well.  But Motta indicated that as relative distance from a transmission line increases, EMF readings will go down.  As an example, Motta said that if EMF readings near a particular transmission line were, say, 20mG to 30mG, they might drop to as low as 2mG to 3mG fifty to one hundred feet away.

When asked if he would send his own children to a kindergarten located at the proposed site, Motta answered "I wouldn't want to say".
 

Related Information

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