Downtown Paterson still carries its raceways, the stepped stone channels that once pulled Passaic water through the mills, and brick walls that have outlasted nearly everything built beside them. SL RIVERA LANDSCAPING & DESIGN LLC works in that company, keeping lawns even and short, borders trimmed, beds cleaned back to a line you could lay a straightedge against. Mowing, edging, string trimming and seasonal cleanups are the whole of it, done at the scale the city allows. A yard tucked behind a mill-era row house is small, which only means every edge is visible from the kitchen window. Nothing loud about the result, just grass that plainly looks intended.