I live in an area where irrigation water and drinking water are metered separately. I used about as much water as you did: about 1,300 for drinking and 11,300 for irrigation. It looks like my sewer charge is a little less than yours but my water charge is a bit more. The totals on our bills are very close to the same.
I know my usage has been consistent for the past three years so either we're both about right or I've been wasting water for a while. My usage drops more than yours in Dec, Jan, and Feb - there might be an adjustment you could make on your sprinkler system to account for the winter months.
As others have pointed out, sewer usage is determined by water usage. If you only have a single meter there is no way to know how much went onto your lawn and how much went down the drain. Your sewer rate is lower than mine and that is probably because they know that the bulk of your water goes onto the lawn.
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Why do people insist on making claims without looking them up first, do they really think no one will check? Proof by emphatic assertion rarely works.
Confirmation bias is real; I can find any number of articles that say so.
Victor, NY - Randallstown, MD - Yakima, WA - Stevensville, MD - Village of Hillsborough
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