Why is residential water usage on a tiered rate structure?

Our system's base level usage year round is consistently around 200 million gallons a month, however May through September typically see increased usage of up to or over 600 million gallons for greenspace irrigation. We have to invest in a system large enough to be able to produce roughly 3 times more water than we typically sell to assure safe drinking water and fire protection needs are met at all times. Lower water usage and sales in non-peak months save very little expense as most of our costs are fixed and do not go decrease proportionately to decreased usage. Year around, our system must build and maintain enough infrastructure for storage, treatment, and high-service extra pumping costs to serve the city's highest peak needs. Recent rate studies have shown that the peak demands are being largely driven by our residential irrigation users, thus billing tiers to recover appropriate costs from those users. Customers can make usage and irrigation decisions based on their needs and amount they would like to spend. 

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1. How do I establish water and other City of Bismarck utility services at a new home or business?
2. How do I discontinue my City of Bismarck utility bill?
3. What is a unit of water?
4. Why is my water consumption so high?
5. Why is residential water usage on a tiered rate structure?
6. Where is the City Landfill located?
7. How can I dispose of paint or other hazardous materials?
8. How often is garbage picked up in Bismarck?
9. If my original garbage day lands on a holiday, when will my garbage be picked up?
10. What if I have an emergency and my street is blocked with snow?
11. What are the requirements and restrictions for garbage to be picked up?
12. What are the regulations for the Automated Waste Collection Containers?
13. What is the difference between inert waste and non-inert waste?
14. How do I report a street light or stop light that is malfunctioning?
15. How do I report a large pothole?