My house was built in 1999 in CA. It had the water pipe (I believe the main water line) right below the main source. Does any one or inspector know if it is per code in CA? If yes, what is the code number?
In case the pipe needs to be relocated, any suggestion where relocate it? What to do in order to pass inspection when upgrading the panel to 200 amps?
Thanks in advance for any comments.
Work space is required in front of the panel as well as dedicated equipment space. For those two reasons the pipe or the panel has to move. If you’re looking to upgrade the service I would just move the panel to the right.
110.26(E)(2) Outdoor.
Outdoor installations shall comply with 110.26(E)(2)(a) through (E)(2)(c).
(a)Installation Requirements. Outdoor electrical equipment shall be the following:
(1) Installed in identified enclosures
(2) Protected from accidental contact by unauthorized personnel or by vehicular traffic
(3) Protected from accidental spillage or leakage from piping systems
(b)Work Space. The working clearance space shall include the zone described in 110.26(A). No architectural appurtenance or other equipment shall be located in this zone.
(c)Dedicated Equipment Space. The space equal to the width and depth of the equipment, and extending from grade to a height of 1.8 m (6 ft) above the equipment, shall be dedicated to the electrical installation.
No piping or other equipment foreign to the electrical installation shall be located in this zone.
Exception: Structural overhangs or roof extensions shall be permitted in this zone.
I have inspected thousands of homes in southern California and have come across many installations close too or very similar. I personally do not see a problem with this installation as it does not obstruct access to facilitate (workspace) as needed.
Facts:
I agree. I wouldn’t hesitate to work on that panel with the pipe there. Since the OP is wanting to install a new service that should be code compliant which means the pipe cannot stay or the panel has to move. If not the next home inspector will be writing it up when they sell the home. 
Maybe with a new panel things can be installed plumb.
