Scope of Services It is the intent of this specification to obtain an annual price agreement for the purchase of cross connection control device testing, repairs, and replacement for domestic and fire line devices for the City of Grand Prairie Public Health and Environmental Quality Department. Testing is limited to confined space entry, fire lines and some domestic devices. Of these 52 identified devices, 44 are fire lines (some may be in a vault, and some may be on the riser and 8 are irrigation devices in a confined space. Repairs will constitute most of the work under this