Our house deeds say we have to share our well water with neighbours in times of need but it's been dry for decades. Thankfully, we're on mains water so we have all mod cons but, as it's metered, we don't waste any on grass or flower beds except when the latter are first planted. There were none when we came.
I'd rather pay a higher water bill and save my fruit and veg than buy stuff I can grow myself and know what's been used to grow it. No pesticides or herbicides here.