You got me curious so I checked bill and I was off a little. I just have an auto payment of $50/month and once a year or so I reconcile what I owe them or skip payment. Its a bit higher this month as I had a bunch of company. My house is closer to 3K sf and my lot is 11,000 sf. I dont have those monthly sewer charges. I Checked and they are in my tax bill ($378 this year). All in it looks like we arent far off
System Access charge $39.44
SDCWA Infrastructure Access Charge $3.98
Usage (4 units at $3.39) $13.56
Total bill is $56.42
Most recent gas bill was $87. Its much higher than last July due to higher rates and it being winter (gas heat)