Get this book, preferably the Kindle version as there are oodles of hyperlinks -->
Prepping for a Suburban or Rural Community: Building a Civil Defense Plan for a Long-Term Catastrophe [Kindle Edition]. It's only $2.99.
There is some discussion of the usual stuff: defense, food, yadda yadd but only vague recommendations...very little is concrete à la "get clean water like this" or "set up your farms like that." The real focus is on organizing your community now to mitigate future disasters. Figure out what works for your circumstances and environment. Set up a structure now. Have plans to more easily establish a post-disaster polity and maintain rule of law if the worst happens.
We've followed a lot of his advice, establishing committees for water, fuel, sanitation, medical care, scrounging, law, defense, Amish relations (ISYN) etc. But the real gold nugget is his detailed advice on establishing a 501(c)(3) tax-exempt organization. Tax exempt, as in charitable donations to the organization are fully deductible. Some money is going to have to be spent on this stuff, and the tax-exempt status takes out some of the sting. It's a pain in the butt, but worth it in the end.
And you know that surplus military gear that Uncle Sugar is spreading around on the LEOs? Well State and
local organizations can apply for grants and materiel if they have their ducks in a row and decent relations with the State and County governments. Hesco barriers, sandbags, diesel generators, fuel filters and groomers, medical consumables, storage racks and shelving, fuel storage blivets...there are lots of goodies out there. You're gonna need a lawyer or a paralegal with OCD though...tons of paperwork.
Anywho, the book is highly recommended, more for the tone and philosophy than concrete prep advice.
PS - A kid on the water committee (working on his Eagle Scout--they still do that out here) is standardizing a way to increase the yield of filtered water from 8 gals/day up to 60 gals per day using 2 x 5 gal buckets, a ceramic filter, a Schroeder valve, and a bicycle pump. He didn't invent the method, the plans are on the Interwebs, but sourcing enough materials for a community, negotiating prices, creating clear construction and maintenance instructions, purchasing and storing the bits and pieces--it's a big job. How many filters are needed for a community our size? Where are the filters to be emplaced? What are the manpower requirements to run these? What's the 5-year plan when the filters are worn out? It really goes to show how the author of this book is right...it will take a lot of folks pulling together to save a town if the worst goes down.
PPS - we can see weeks in a row where the high temp never gets above 0F. The heating committee is working on a plan to turn water heater tanks into efficient volcano wood stoves. What tools, skills, materials are needed for the job? What do we need to stockpile? What will likely be available in local stores if we prevent looting? Stovepipe costs an absolute bomb! What are safe alternatives?
You get the drift.