Wastewater treatment levy exemption eliminated

From 2017, every resident is required to pay water pollution tax. This is the tax for the treatment of waste water levied by the district water board. Up until 2016, people could receive an exemption for this due to their financial situation. 

Exemption is still possible for the water system levy. If you live in De Krimpenerwaard, an exemption is still available for the road levy.

Why has the wastewater treatment levy exemption been eliminated?
Are exceptions possible in the elimination of the wastewater treatment levy exemption?
Can I submit an objection to the elimination of the wastewater treatment levy exemption?
Can the water board simply decide to eliminate the wastewater treatment levy exemption?
What benefit does the elimination of the wastewater treatment levy exemption provide?
Why doesn't the water board make cutbacks rather than eliminate the wastewater treatment levy exemption?
The wastewater treatment levy exemption has been eliminated. Why don't the other taxpayers pay a bit more?
Do residents have an influence on the amount of the wastewater treatment levy, for example by conserving water?
Why is the District Water Board of Delfland so much more expensive than other water boards?
Letter ‘No exemption for water treatment levies 2017'
Lettre ‘Pas d’acquittement de la redevance d’assainissement pour 2017’ en ‘français
"2017’de atık su vergisine af yok
لموضوع: انتهاء الإعفاء من رسوم معالجة المياه لسنة 2017
لموضوع: عدم الإعفاء من رسوم معالجة المياه لعام 2017