diff --git a/PROMS/XYPlots/XYPlots.cs b/PROMS/XYPlots/XYPlots.cs
index 3d40b215..4d44efae 100644
--- a/PROMS/XYPlots/XYPlots.cs
+++ b/PROMS/XYPlots/XYPlots.cs
@@ -333,6 +333,37 @@ namespace XYPlots
 			retval = Convert.ToInt32(NextPiece(), 10);
 			return retval;
 		}
+		// A 'special' isWhiteSpaceDelta, NextPieceDelta, and getdoubleDelta was added because Wolf Creek 
+		// has a ',' between the x/y delta of one of their plots (C-1).  
+		// this was causing the x delta to be set to 50,250.  
+		private bool isWhiteSpaceDelta(char cptr)
+		{
+			bool rtnval = false;
+			if (!cptr.Equals(null))
+			{
+				int idx = "\t\n\r\f ,".IndexOf(cptr);
+				rtnval = (idx > -1);
+			}
+			return rtnval;
+		}
+		private string NextPieceDelta()
+		{
+			string rtnval;
+			int ptr;
+			while (BuffPtr >= 0 && Buff[BuffPtr] != 0 && isWhiteSpaceDelta(Buff[BuffPtr])) BuffPtr++;
+			ptr = BuffPtr;
+			while (BuffPtr >= 0 && Buff[BuffPtr] != 0 && !isWhiteSpaceDelta(Buff[BuffPtr])) BuffPtr++;
+			if (EndOfCommand()) EndFlag = 1;
+			rtnval = Buff.Substring(ptr, BuffPtr - ptr);
+			BuffPtr++;
+			return rtnval;
+		}
+		private double getdoubleDelta()
+		{
+			double retval;
+			retval = Convert.ToDouble(NextPieceDelta());
+			return retval;
+		}
 		private double getdouble()
 		{
 			double retval;
@@ -457,8 +488,8 @@ namespace XYPlots
 			maximum[Y] = getdouble();
 			type[X] = getchr();
 			type[Y] = getchr();
-			if (EndFlag == 0) delta[X] = getdouble();
-			if (EndFlag == 0) delta[Y] = getdouble();
+			if (EndFlag == 0) delta[X] = getdoubleDelta();
+			if (EndFlag == 0) delta[Y] = getdoubleDelta();
 			if (EndFlag == 0) spcminor[X] = getint();
 			if (EndFlag == 0) spcminor[Y] = getint();
 			Offset[USER, X] = 0;