In the UK, this is covered in the Licensing Act 2003 (Mandatory Licensing Conditions) (Amendment) Order 2014, which amends the Licensing Act 2003 (Mandatory Licensing Conditions) Order 2010.
Mandatory Licensing Condition 2 states:
The responsible person must ensure that free potable water is provided on request to customers where it is reasonably ...
South Carolina Code §27-33-50: Financial responsibility of tenant for utilities.
(A) Unless otherwise agreed in writing, a tenant has sole financial
responsibility for gas, electric, water, sewerage, or garbage services
provided to the premises the tenant leases, and a landlord is not
liable for a tenant's account.
(B) An entity or utility ...
In the US, there are many laws governing the amount of pollution generated on private land. It's not easy to get a handle on these laws.
One problem, which you mention, is our federalism. In the US, you are likely to be subject to federal, state and local governments. And each of those governments is likely to have different rules covering different ...
France is an often cited example of a country that mandates restaurants to serve tap water for free,
while Germany and Austria do not have any such legislation.
In Austria it is nevertheless more usual than in Germany for restaurants to not charge guests for tap water (according to the linked German newspaper articles).
In Germany, expect to be charged ...