May is when Western PA yards show you where water actually goes after a few heavy rains—not where you hoped it would go on paper. This guide is a handoff sequence for homeowners who want clear language before they talk with contractors, neighbors, or municipal programs about grading, downspouts, and the low spots that always win the puddle contest.
Use it next to our article on May first heavy rains and backyard drainage for photo habits, and outdoor drainage maintenance when you need vocabulary that matches how crews describe sheet flow and outlet clogging.
Name the real low spots with daylight
Walk the property the morning after rain when grass still shows tracks. Mark repeat puddles with stakes or chalk that survives one photo set. Measure approximate length and width in feet so your notes read like a field log, not a vague "always wet back there" line that forces guesses on the phone.
Note how long a stripe stays soft forty-eight hours after a modest rain. Repeat footprints in the same outline tell the same story on clay hillsides and flat lots alike: water is not leaving on the path you think is active.
Trace every downspout to its exit
Follow each leader to daylight, a dry well, or a storm tie-in if you know where it goes. Note splash blocks that migrated, elbows that leak at joints, and leaders that dump toward foundations, walks, or a neighbor's fence. Photograph problem joints from two angles so winter damage and summer growth are both visible in the same file name pattern you keep all year.
When a leader concentrates roof volume in one corner, a technically correct swale can still fail. Write roof water paths in their own short paragraph before you describe yard slope. That split saves time when you send the packet through contact us.
Keep roof volume and yard slope as separate stories
Roof runoff can overwhelm a lawn crown if leaders aim at the same ten feet every storm. Yard slope behavior belongs in a second paragraph: where sheet flow starts, where it crosses walks, and where it stops. When those stories live separately, contractors spend less time untangling mixed symptoms and more time proposing fixes that match both loads.
Inspect patios and walkways for edges that block sheet flow toward the outlet you think is active. Joints that washed out and raised lips often sit in the same stripe as recurring puddles. If outdoor living traffic increased since last year, say so—wear patterns change where water can infiltrate versus where it will sheet across stone.
Build a handoff packet contractors can reuse
Combine photos, the two short roof and yard narratives, and a simple sketch with north marked. Add event dates that matter for access, such as host weekends or fence projects, so proposed work lands in realistic windows. Include lighting notes if walks stay dark after grading changes, using habits from our April outdoor lighting check for beam aim after soil or stone moves.
Deep mulch against siding can bridge moisture where you do not want it. List beds that stay saturated while uphill lawn looks fine. If sprinklers run before rain events, capture your controller schedule in the same packet so grading proposals account for artificial water, not only storms.
Honest expectations and shared runoff
When sheet flow crosses a property line, mark the direction on your sketch with a light arrow. Photos from both sides of a fence after the same storm prevent summer arguments when everyone's mulch floats the same afternoon. You are not assigning blame—you are documenting physics so any proposed swale or outlet respects real paths.
Not every wet corner needs a major build. Sometimes aim, mulch depth, and a reset splash block solve the repeat stripe. Sometimes stone, swale, and outlet work belong in scope. Either way, May storms give you evidence summer will repeat. Send your packet through contact us with the top three questions this walk surfaced. Good notes beat perfect sketches drawn from memory in August.