By the middle of August the lawns along Crooks Road tell you exactly how their summer went — one deep green, the next one straw, often side by side. Precision Lawn Irrigation, Inc. works that difference in Rochester Hills, keeping turf watered and healthy through the dry weeks and mowed, trimmed and tended through the growing ones. Michigan can hand a lawn six inches of June rain and then nothing at all for a month, so the care has to be as changeable as the sky. Watching a tired stretch of grass come back with steady attention is a genuinely good day's outcome. Even, unbroken green from one property line to the other is the aim.