CHESTERFIELD COUNTY UTILITIES DEPARTMENT
ADDISON-EVANS WATER PRODUCTION AND LABORATORY FACILITY
RESULTS OF 2003 TRIBUTARY SURVEY WATER QUALITY ANALYSES  (January - December)
						DISSOLVED	DISSOLVED			FECAL		TOTAL KJELDAHL	OXIDIZED	TOTAL	ORTHOPHOSPHATE	TOTAL ORGANIC	TOTAL SUSPENDED
					TEMPERATURE	OXYGEN	OXYGEN		CONDUCTIVITY	COLIFORM	TOTAL NITROGEN*	NITROGEN	NITROGEN	PHOSPHORUS	PHOSPHORUS	CARBON	SOLIDS	TURBIDITY
TRIBUTARY	DATE	TIME	SURVEY TYPE	STORM#	(Degrees Celsius)	% SATURATION	(mg/L)	pH	(micro-mhos/cm)	(Colonies/100mL)	(mg/L as N)	(mg/L as N)	(mg/L as N)	(mg/L as P)	(mg/L as P)	(mg/L)	(mg/L)	(ntu)	REMARKS:	COMMENTS:
1	01/03/03	10:45	Storm	1	8.7	82.4	9.57	5.81	53.6	269	0.62	0.52	0.10	0.05	0.011	7.65	14.3	36.4	0.89 Inches Rain
2	01/03/03	11:05	Storm	1	8.9	90.4	10.4	5.82	56.8	161	0.83	0.64	0.19	0.07	0.020	9.62	16.0	13.6	0.89 Inches Rain
3-I	01/03/03	11:50	Storm	1	8.6	84.8	9.90	4.96	25.9	41	0.56	0.51	0.05	0.04	0.007	13.8	32.7	16.2	0.89 Inches Rain
3-II	01/03/03	11:40	Storm	1	8.7	87.6	10.2	5.22	33.2	384	0.56	0.48	0.08	0.03	0.014	13.6	13.0	11.7	0.89 Inches Rain
4	01/03/03	12:00	Storm	1	8.9	90.5	10.5	5.36	30.9	41	0.62	0.54	0.08	0.06	0.022	10.4	24.3	21.6	0.89 Inches Rain
5	01/03/03	12:10	Storm	1	8.7	76.2	8.82	5.72	38.6	243	0.65	0.56	0.09	0.05	0.012	9.27	5.7	9.40	0.89 Inches Rain
6	01/03/03	12:25	Storm	1	8.8	86.7	10.1	5.72	37.1	52	0.86	0.68	0.18	0.09	0.010	6.81	104	63.8	0.89 Inches Rain
7	01/03/03	12:35	Storm	1	9.1	90.4	10.4	6.01	49.6	98	0.64	0.50	0.14	0.13	0.011	4.69	281	164	0.89 Inches Rain
8	01/03/03	10:20	Storm	1	7.9	89.4	10.6	5.74	45.7	41	0.68	0.58	0.10	0.04	0.010	6.69	7.0	7.70	0.89 Inches Rain
RO 14 CBT	01/03/03	11:20	Storm	1	11.0	92.6	10.2	6.19	98.3	213	1.70	0.85	0.85	0.05	0.012	4.67	37.7	21.2	0.89 Inches Rain
1	01/13/03	10:25	Baseflow		2.8	71.8	9.80	6.24	72.8	10	0.21	0.21	<0.01	0.02	<0.005	5.48	6.4	11.6
2	01/13/03	11:05	Baseflow		0.8	90.4	13.0	6.18	70.7	206	**	**	0.04	0.01	0.005	4.94	16.2	6.82
3-I	01/13/03	11:55	Baseflow		1.1	87.3	12.5	5.61	34.2	16	0.05	0.05	<0.01	**	<0.005	6.68	2.2	3.91
3-II	01/13/03	11:35	Baseflow		1.1	84.1	12.0	5.61	40.8	6	0.12	0.12	<0.01	**	<0.005	7.20	<2	4.95
4	01/13/03	12:15	Baseflow		2.4	90.2	12.4	5.79	42.8	7	0.16	0.15	0.01	<0.01	<0.005	5.59	2.6	8.12
5	01/13/03	12:35	Baseflow		1.0	84.3	12.1	5.94	42.2	88	0.21	0.21	<0.01	<0.01	<0.005	6.27	<2	6.40
6	01/13/03	12:50	Baseflow		1.9	93.1	13.0	6.02	40.5	2	0.34	0.24	0.10	<0.01	<0.005	4.01	2.0	12.5
7	01/13/03	13:05	Baseflow		1.7	95.0	13.4	6.38	51.2	17	0.22	0.15	0.07	**	0.005	1.93	2.8	8.26
8	01/13/03	10:08	Baseflow		3.6	85.2	11.4	6.03	42.6	2	0.33	0.29	0.04	0.01	0.005	6.36	4.4	8.93
RO 13 CHP	01/13/03	13:25	Baseflow		6.7	62.8	7.75	6.01	91.7	>2419	0.31	0.20	0.11	<0.01	<0.005	2.62	3.4	4.16
RO 14 CBT	01/13/03	11:20	Baseflow		4.3	98.7	12.9	6.66	82.9	119	0.57	0.27	0.30	<0.01	<0.005	1.89	<2	3.06
1	02/19/03	9:45	Storm	2	**	**	**	**	**	**	0.61	0.52	0.09	0.04	0.007	5.71	13.0	27.2	0.83 Inches Rain	Composite Collected on Monday 02/19/03
2	02/19/03	10:30	Storm	2	**	**	**	**	**	**	0.71	0.47	0.24	0.08	0.008	6.81	18.0	14.8	0.83 Inches Rain	Composite Collected on Monday 02/19/03
3-I	02/19/03	11:50	Storm	2	**	**	**	**	**	**	0.53	0.50	0.03	0.02	0.005	8.05	7.7	7.95	0.83 Inches Rain	Composite Collected on Monday 02/19/03
3-II	02/19/03	11:30	Storm	2	**	**	**	**	**	**	0.43	0.41	0.02	0.02	0.005	8.03	31.7	26.5	0.83 Inches Rain	Composite Collected on Monday 02/19/03
4	02/19/03	12:05	Storm	2	**	**	**	**	**	**	0.52	0.45	0.07	0.06	0.008	9.34	21.3	22.2	0.83 Inches Rain	Composite Collected on Monday 02/19/03
5	02/19/03	12:25	Storm	2	**	**	**	**	**	**	0.39	0.33	0.06	0.03	0.005	5.69	2.3	6.20	0.83 Inches Rain	Composite Collected on Monday 02/19/03
6	02/19/03	12:55	Storm	2	**	**	**	**	**	**	0.19	<0.04	0.19	0.03	0.005	4.26	13.0	14.2	0.83 Inches Rain	Composite Collected on Monday 02/19/03
7	02/19/03	13:15	Storm	2	**	**	**	**	**	**	0.61	0.40	0.21	0.02	0.009	4.46	93.7	66.9	0.83 Inches Rain	Composite Collected on Monday 02/19/03
8	02/19/03	9:20	Storm	2	**	**	**	**	**	**	0.56	0.52	0.04	0.05	0.005	5.13	5.7	6.55	0.83 Inches Rain	Composite Collected on Monday 02/19/03
RO 13 CHP	02/19/03	13:40	Storm	2	**	**	**	**	**	**	1.29	0.57	0.72	0.06	0.013	5.32	16.7	18.4	0.83 Inches Rain	Composite Collected on Monday 02/19/03
RO 14 CBT	02/19/03	10:55	Storm	2	**	**	**	**	**	**	1.46	0.53	0.93	0.05	0.012	4.96	27.3	25.5	0.83 Inches Rain	Composite Collected on Monday 02/19/03
1	02/19/03	9:45	Baseflow		1.3	83.5	11.9	6.10	76.0	7	0.24	0.19	0.05	0.02	0.006	4.42	2.6	10.2		Peak of Storm 2 Rainfall ended 02/15/03
2	02/19/03	10:30	Baseflow		2.2	92.2	12.7	6.05	91.7	36	0.36	0.18	0.18	<0.01	0.007	4.31	6.4	4.69		Peak of Storm 2 Rainfall ended 02/15/03
3-I	02/19/03	11:50	Baseflow		2.4	88.5	12.3	5.62	32.5	37	0.21	0.21	<0.01	<0.01	0.006	6.22	<2	3.57		Peak of Storm 2 Rainfall ended 02/15/03
3-II	02/19/03	11:30	Baseflow		0.9	85.3	12.4	5.70	44.4	8	0.25	0.23	0.02	<0.01	0.006	5.88	3.2	5.62		Peak of Storm 2 Rainfall ended 02/15/03
4	02/19/03	12:05	Baseflow		0.7	88.6	11.8	5.82	47.3	6	0.30	0.23	0.07	0.02	0.016	5.56	4.4	5.16		Peak of Storm 2 Rainfall ended 02/15/03
5	02/19/03	12:25	Baseflow		0.8	77.4	11.2	5.94	50.7	10	0.23	0.19	0.04	0.02	0.022	4.81	<2	3.95		Peak of Storm 2 Rainfall ended 02/15/03
6	02/19/03	12:55	Baseflow		3.3	89.9	12.2	5.99	60.1	4	0.39	0.13	0.26	0.02	0.022	3.11	2.8	8.12		Peak of Storm 2 Rainfall ended 02/15/03
7	02/19/03	13:15	Baseflow		3.7	92.8	12.4	6.25	173	6	0.32	0.13	0.19	0.02	0.007	2.11	3.4	5.36		Peak of Storm 2 Rainfall ended 02/15/03
8	02/19/03	9:20	Baseflow		1.0	88.0	12.4	6.14	54.3	4	0.45	0.39	0.06	0.01	<0.005	5.08	4.4	6.40		Peak of Storm 2 Rainfall ended 02/15/03
RO 13 CHP	02/19/03	13:40	Baseflow		4.5	82.2	10.7	5.96	632	276	0.66	0.14	0.52	<0.01	0.006	3.56	3.6	5.60		Peak of Storm 2 Rainfall ended 02/15/03
RO 14 CBT	02/19/03	10:55	Baseflow		6.8	99.9	12.4	6.50	120	167	1.02	0.12	0.90	<0.01	0.007	2.23	2.6	2.96		Peak of Storm 2 Rainfall ended 02/15/03
1	02/23/03	9:20	Storm	3	5.4	87.6	10.9	5.75	52.6	203	0.51	0.49	0.02	0.06	<0.005	7.68	67.3	51.9	2.04 Inches Rain
2	02/23/03	9:40	Storm	3	6.5	86.1	10.3	5.82	70.4	1137	0.61	0.48	0.13	0.09	0.005	6.24	26.3	17.2	2.04 Inches Rain
3-I	02/23/03	10:25	Storm	3	5.6	86.6	10.6	4.86	23.0	20	0.42	0.42	<0.01	0.02	<0.005	8.82	49.3	19.8	2.04 Inches Rain
3-II	02/23/03	10:15	Storm	3	5.9	85.3	10.4	5.12	34.0	143	0.46	0.46	<0.01	0.02	<0.005	7.46	37.0	26.0	2.04 Inches Rain
4	02/23/03	10:45	Storm	3	5.7	93.2	11.4	5.27	29.7	74	0.37	0.34	0.03	0.06	<0.005	7.83	40.7	21.6	2.04 Inches Rain
5	02/23/03	11:00	Storm	3	5.0	87.4	10.9	5.86	48.7	226	0.03	<0.04	0.03	0.02	<0.005	5.52	11.0	8.80	2.04 Inches Rain
6	02/23/03	11:20	Storm	3	5.9	87.3	10.6	5.66	42.0	145	0.46	0.40	0.06	0.03	<0.005	4.63	82.3	44.0	2.04 Inches Rain
7	02/23/03	11:45	Storm	3	6.9	90.3	10.7	5.89	55.0	96	0.14	0.14	<0.01	0.02	<0.005	3.98	124	66.4	2.04 Inches Rain
8	02/23/03	9:00	Storm	3	5.7	93.0	11.4	5.68	44.6	323	0.51	0.51	<0.01	0.05	<0.005	4.81