Wanted to confirm the long runs to the amplified BSC2 Pressure Sensors weren't the main ground noise culprit.  Richard plans to add following resistors to the satellite amplifier before the long runs.

Anyway, it does not look like these are making the Pump Station Pressure signals noisy.

Attached is 30 minutes where we disconnected these channels from the servo inputs: Ch3 goes away as the return and supply pressures from BSC2 (Chs7 & 8) are disconnected. The Main Supply pressure, Ch9, shows that the noise level doesn't change during this period.  The servo is in free running manual mode.