Same here, when I plant new grass seed I water it until the first cutting as needed. That is it but we do get our share of rain here in NC so it stays green most of summer.i use the water from my pond and burn gas in a pump to water my lawn. Only when I put down grass seed, after it starts growing... it’s up to Mother Nature haha. The wife’s garden however will get watered often. Advantage of being on a well in a high water table, I will never run out.
Garden I water, I count on the produce for the winter months. Have a great well, can run 24 hours which it takes to water both gardens and never run out.
Mine is 140 feet deep pulled the pump for repair 2 years ago middle of summer. Could see the water level about 10' below ground level. Really lucky to have it at my disposal, little cost to use it all I need to.