| 11. | Wastewater tariffs typically follow the same structure as water tariffs.
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| 12. | There are different valid methods to compare water tariff levels.
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| 13. | Despite these low tariffs, some states have further reduced water tariffs.
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| 14. | One way to provide incentives to save water is higher water tariffs.
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| 15. | Between 1991 and 2004, the municipality increased water tariffs nine times.
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| 16. | The sewer tariff is even lower than the water tariff.
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| 17. | Water tariffs, for instance, have not been raised for four years.
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| 18. | Tap water tariffs to increase 25 % for major users
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| 19. | New water tariffs set to skyrocket this month, NATION
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| 20. | Governor OKs increase in tap water tariffs, JAKARTA POST
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