TY - RPRT TI - Estimating net drawdown resulting from episodic withdrawals at six well fields in the coastal plain physiographic province of Virginia AU - M. J. Focazio AU - G. K. Speiran PY - 1993 DO - 10.3133/wri934159 UR - https://pubs.usgs.gov/publication/wri934159 ID - wri934159 ER -