As-built redline records, read into a draft list for your surveyor or CAD tech.

While pipe goes in, a foreman or grade checker marks the plan set: a valve moved, a fitting added, extra cover at a crossing, a service wye shifted down the line. Daily logs and grade sheets hold the rest. At closeout your surveyor or CAD tech has to turn that into what the owner wants, starting with which sheet holds which note.

In the test, AI reads copies of the marked-up sheets and logs and drafts the as-built list: line and structure, station and offset, invert or depth, each fitting, valve and service location, every difference from the plan, and a separate list of plan items with no field note. It makes no drawing and applies no seal. Your reviewer compares the list with the record drawing that went to the owner.

A color means something different at each owner. WSSC Water in Maryland wants water as-builts in green and sewer in red, and on a sewer profile a check mark beside any elevation built as designed and a single line through any that changed. In Sumner, Washington, red marks revisions and additions and green marks deletions, so the same green pen says water in one place and removed in another. Seacoast Utility Authority in Palm Beach County denotes record information by cloud or bold print and crosses out design information. Salisbury, Maryland wants approved red line changes in red and bars words such as Install, Proposed, Remove or Provide from the finished sheets. The draft records which legend each job used, reads every mark through that legend, and lists any mark it can't place.

Location comes in whatever system the owner chose. Miami-Dade's as-built checklist wants station and offset on every valve, fitting, service, outlet, manhole, deflection point, connection and crossing, with stationing that starts at 10+00, is never negative, and gets an equation station where two systems cross. Palm Beach County locates everything by State Plane x, y and z, takes station and offset only as an addition inside a road right-of-way, and rounds horizontal to the tenth, elevations to the hundredth and slopes to the ten-thousandth. WSSC asks for three swing ties to the center of each manhole cover and to each cap, valve and test station on the water side, taken in a stated order of preference from manhole covers down to property corners, and rejects a tie to any feature not drawn on the sheet. Seacoast won't accept the extension of an imaginary line as a reference. A foreman's note reading 14 feet off the curb fits none of those until a surveyor has it, so the draft keeps the note as written and says what that owner will want instead.

An elevation is useless without its datum and its starting point. Miami-Dade prefers NGVD 1929 and accepts NAVD 88 with a conversion table on each sheet, while Seacoast, also in South Florida, wants NAVD 1988 with a table back to NGVD 1929. WSSC measures manhole depth from the top of the rim to the channel centerline. Palm Beach County wants elevations at the top of nut on valves and fittings, at the hydrant's main nozzle and at top of pipe every 100 feet. Miami-Dade tightens its interval to 25 feet inside its own facilities. A depth written in a log may run to top of pipe, invert or rim. The draft keeps the number and the words that came with it, notes the datum your sheets show, and converts nothing your records don't already convert.

Small connections are where field notes run out. San Antonio Water System's example writes a lateral as a station, one wye, three 45-degree bends and 12 feet of 6-inch pipe. WSSC's service connection form wants the main tee's station measured from the downstream manhole, the footage from main centerline to property line, and the depth at the cleanout stack or curb stop. On a wet tap or cut-in, Palm Beach County wants the tapping sleeve or tee, the new gate valve and the distance to the nearest in-line valve. Seacoast records jack and bore casings at both ends and the joint type wherever material changes, and Sumner tells preparers to compare TV reports to side sewer locations. Those details are easy to leave out of a log, so the draft closes with a list of everything the plan shows that no field note mentions.

A contractor's list isn't the as-built, and the draft doesn't pretend to be. Palm Beach County requires a Professional Land Surveyor's seal, refuses a disclaimer that the data came from the contractor, requires the data to be collected by whoever prepares the drawing, and accepts neither handwritten data nor tables of crossing data. San Antonio Water System does take the contractor's redlines in its initial submittal and has the engineer verify them for discrepancies or omissions. Miami-Dade accepts no plus or minus dimensions and wants a letter from the engineer of record, inspector or construction manager when changes appear. Seacoast sets its bar at drawings a utility worker with no surveying experience could use to find mains and fittings. ASCE/UESI/CI 75-22, the Standard Guideline for Recording and Exchanging Utility Infrastructure Data, published in July 2022, grew out of talk of an as-built standard. Your reviewer will look for marks tied to the right line, each difference from the plan named, no value supplied where the field left none, and a draft that reads as a worksheet for the person who measures and certifies.

When your reviewer says yes, new redlines and logs go through the same reading for about 30 days as crews finish each line.

Each list waits for your surveyor or CAD tech, who approves it and measures or checks whatever the owner requires before anyone relies on it.

The live job has a fixed price agreed before you sign, with monthly support once it runs, and another job, if you want one, is priced on its own.