Reco Prianto, PE

Reco Prianto, PE is the founder and principal engineer at Calichi Design Group. Licensed in 9 states (CA, OR, HI, WA, NV, AZ, CO, NM, TX), he has delivered 400+ projects across site civil engineering, dry utility design, stormwater, and fire protection engineering since founding the firm in 2009. His project portfolio includes schools, affordable housing, mixed-use developments, and transit facilities for clients including Oakland Unified School District, JPMorgan Chase, Gensler, McCarthy Building Companies, and the Port of Oakland. Reco holds a California QSD/QSP certification and is SLBE-certified by Alameda County and OUSD. He writes about civil engineering practice, permitting, and California infrastructure.

Can Water and Electric Lines Share a Trench?

October 7, 2026 by Reco Prianto, PE

In PG&E territory, a water line does not go in the joint trench. What PG&E, EBMUD, California drinking water rules and the plumbing code say about water, electric and sewer separation.

When Is a Fire Flow Analysis Required?

November 3, 2026May 29, 2026 by Reco Prianto, PE

When Is a Fire Flow Analysis Required? — answered by Reco Prianto, PE. CaliChi Design Group: civil engineering experts in California, Oregon, and Hawaii.

Civil Engineer vs. Land Surveyor: Who Do You Need?

November 3, 2026May 22, 2026 by Reco Prianto, PE

Civil Engineer vs. Land Surveyor: Who Do You Need? — answered by Reco Prianto, PE. CaliChi Design Group: civil engineering experts in California, Oregon, a

QSD vs. QSP: Which Do You Need for Your SWPPP?

November 3, 2026May 20, 2026 by Reco Prianto, PE

QSD vs. QSP: Which Do You Need for Your SWPPP? — answered by Reco Prianto, PE. CaliChi Design Group: civil engineering experts in California, Oregon, and H

How to Get a Grading Permit in California

November 3, 2026May 13, 2026 by Reco Prianto, PE

How to Get a Grading Permit in California — answered by Reco Prianto, PE. CaliChi Design Group: civil engineering experts in California, Oregon, and Hawaii

Electrical Vault Requirements for Commercial Projects in California

November 3, 2026May 8, 2026 by Reco Prianto, PE

Learn the California electrical code (Title 24 and NEC) requirements for electrical vaults, transformer locations, pad-mounted enclosures, and metering boxes on commercial projects.