New2pools - that yellowish junk - I wouldn't take it too lightly - it looks like mustard algae - I've researched the heck out of this stuff since I've had it before, it's probably the worst algae to try and get rid of, it can live in relatively high chlorine concentrations and the only way I have found to get rid of it is to shock to 20+ ppm (25 preferrably), anything else and you'll find it shows it's ugly face every 2 days, gradually increasing in mass, once it gets beyond a certain point, it's a very long process to eliminate - get it early!
Shocking to 25ppm seemed to have cleared it for everyone at the other pool forum the last couple of years, so I'm relatively sure this will work for you.
As for mole tunnels - seriously - the tabasco sauce works like a charm, other alternatives are spraying castor oil over the inhabited area - it is also a deterrent - this method may be cheaper than wasting all your nice hot sauce. There are commercial spays available - all contain castor oil, so castor oil is your cheap alternative to expensive repackaged/relabeled products - just put it into one of those hose attachment mixers, set to a high concentration and water the lawn.
Lastly, the solution that seemed to work best for me can be made available to you (just pay shipping)
I guarantee he won't sleep until the last mole is dead at your doorstep - oh, he may also deliver you the odd cat, squirrel, rat, bunny, deer and bird.
Disclaimer - I am not responsible for repairing your torn up property.