In class we have to compare are averages to other schools averages. I'm comparing what Champlain college got and what our school got. Champlain college went to potash brook for as my school went to sentenal stream. They went on September just like are class. For them the day was nice and clear when we had to deal with overcast and showers. One part of the stream that we tested was the width, depth and velocity. Champlain had approx. 22.5ft. My group had 3.5ft but as a school we had an avg. number of 1.98ft. As for the depth the college kids 1 foot, my school had a average of 4.15ft. The stream velocity in the potash brook is 1.10 ft/sec. In senteneal the average 38ft/sec. The next thing we tested was pollution tolerance.  There group had only found two types of animals, they ended up finding stonefly nymph and caddies fly larvae. Our school ended up finding caddis fly larvae, crane fly larvae and left-handed snails. Only one more then the other school but pretty different lake animals. Our water rating is a eight which is actually really good meaning that our water isn't really polluted.