Capitain Reef Complex V1.01 Groundwater Availability Model Boundary Condition Packages. 
Texas Water Development Board Groundwater Modeling Department

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WEL - WELL PKG
crcx_v101_wel.csv
crcx_v101_bc_pkg.gpkg\crcx_v101_wel
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cellid 	| integer 	| Format:  layer + rrrr + cccc (0-3 leading zeros for row and cols). Example: 200230245 (layer = 2, row = 23, col = 245)
lay 	| integer 	| Layer number
row 	| integer 	| Row number 
col 	| integer 	| Column number
ibound 	| integer 	| ibound number
q1	 	| float 	| pumping for stress period 1
qN 		| float 	| pumping for stress period N
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DRN - DRN PKG
crcx_v101_drn.csv
crcx_v101_bc_pkg.gpkg\crcx_v101_drn
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cellid 	| integer 	| Format:  layer + rrrr + cccc (0-3 leading zeros for row and cols). Example: 200230245 (layer = 2, row = 23, col = 245)
lay 	| integer 	| Layer number
row 	| integer 	| Row number 
col 	| integer 	| Column number
ibound 	| integer 	| ibound number
elev1	| float 	| drain elevation for stress period 1
elevN	| float 	| drain elevation for stress period N
cond1	| float 	| drain conductivity for stress period 1
condN	| float 	| drain conductivity for stress period N
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GHB - GENERAL HEAD BOUNDARY PKG
crcx_v101_ghb.csv
crcx_v101_bc_pkg.gpkg\crcx_v101_ghb
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cellid 	| integer 	| Format:  layer + rrrr + cccc (0-3 leading zeros for row and cols). Example: 200230245 (layer = 2, row = 23, col = 245)
lay 	| integer 	| Layer number
row 	| integer 	| Row number 
col 	| integer 	| Column number
ibound 	| integer 	| ibound number
head1	| float 	| head for stress period 1
headN	| float 	| head for stress period N
cond1	| float 	| conductivity for stress period 1
condN	| float 	| conductivity for stress period N
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RCH - RECHARGE PKG
crcx_v101_rch.csv
crcx_v101_bc_pkg.gpkg\crcx_v101_rch
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cellid 	| integer 	| Format:  layer + rrrr + cccc (0-3 leading zeros for row and cols). Example: 200230245 (layer = 2, row = 23, col = 245)
lay 	| integer 	| Layer number
row 	| integer 	| Row number 
col 	| integer 	| Column number
ibound 	| integer 	| ibound number
rech1	| float 	| recharge for stress period 1
rechN	| float 	| recharge for stress period N
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RIV - RIVER PKG
crcx_v101_riv.csv
crcx_v101_bc_pkg.gpkg\crcx_v101_riv
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cellid 	| integer 	| Format:  layer + rrrr + cccc (0-3 leading zeros for row and cols). Example: 200230245 (layer = 2, row = 23, col = 245)
lay 	| integer 	| Layer number
row 	| integer 	| Row number 
col 	| integer 	| Column number
ibound 	| integer 	| ibound number
rbot	| float		| elevation of the bottom of the riverbed for all stress periods
cond	| float 	| riverbed hydraulic conductance for all stress periods
stage	| float 	| head in the river cell for all stress periods
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EVT - EVAPOTRANSPIRATION PKG
crcx_v101_res_evt.csv
crcx_v101_bc_pkg.gpkg\crcx_v101_res_evt
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cellid 	| integer 	| Format:  layer + rrrr + cccc (0-3 leading zeros for row and cols). Example: 200230245 (layer = 2, row = 23, col = 245)
lay 	| integer 	| Layer number
row 	| integer 	| Row number 
col 	| integer 	| Column number
ibound | integer 	| ibound number
surf	| float 	| elevation of ET surface for all stress periods
evtr1	| float 	| max ET flux rate for stress period 1
evtrN	| float 	| max ET flux rate for stress period N
exdp1	| float 	| ET extinction depth for stress period 1
exdpN	| float 	| ET extinction depth for stress period N
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For more information on the variables refer to:
USGS Survey Techniques and Methods 6–A16
MODFLOW-2005, The U.S. Geological Survey Modular Ground-Water Model—the Ground-Water Flow Process

USGS Techniques and Methods 6-A37
MODFLOW-NWT, A Newton Formulation for MODFLOW-2005