Can you please explain the meaning of the word "otherwise" in this sentence? Can you rephrase it in another ..

Question

... way that can be easily understood?

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However, while reliance upon, and participation within the informal sector provision of environmental services has enabled the poorer households to survive (especially provision of water supply), it has also exacerbated socio-economic inequities. Informal provision *of otherwise* non-existent services for water supply and sanitation has made urban poor a captive market whose ‘ability to pay’ can not be measured by what they are currently required to pay for the largely unregulated, informal water supply and sanitation services.

Answer 1

It means that they are the only existing services and without them there would be none. It is a slam on the state of the area that sees the poor in a condition where they are paying extraordinary fees for water because there are no state sponsored facilities for providing water to them

Answer 2

"Mongru" is not English . I was very intrigued by this, did a bit of research and "Mongru " is actually a surname which does exist in several countries round the world, and there was a "de Mongru" family in France before the French revolution. Edit> I answered your question shortly after you posted it . Returning to it later and seeing your additional comment, I realised that you are not someone from a non-English speaking country seeking help, so explanations about "mongrel" and "monger" were pointless! As an imaginary word , it could describe a sort of "monster" and "ogre" combined: The mongru roamed the countryside devouring crops and sucking blood from creatures that it met on the way. The cellar sheltered a mongru, a creature that grabbed children by their ankles and bit off all their toes for breakfast. However, a similar combination was used by the authors of the vastly popular children's book "The Gruffalo" so, if you are writing a children's book, beware of being accused of poaching . Or it could be the ruler of an imaginary country or planet "monitoring grudges." "The mongru sat on a teflon throne and tried to settle the disputes of warmongers and foreign states. (Tony Blair might have emigrated)

Answer 3

it means "of services for water supply and sanitation that would not exist if the conditions or circumstances were different"

if it were not for these informal providers of the services these families would not have access to water and sanitation services at all

Answer 4

I see it as:
"Informal provision 'as such unidentified', non-existent services for water supply..."
It could be rephrased as:
"Informal provision 'in devious', non-existent services for water supply..."