Water Data Quality, Kalamazoo Michigan County Government Website, Environmental Health Division

Environmental Health Division
(269) 373 - 5337, www.kalcounty.com/eh

This report summarizes all water quality data collected from Gourdneck Creek, which is part of the Portage River Sub-Watershed, which is part of the larger St. Joseph River Watershed. (see map to the right)

Water sampling and measurements are conducted by Environmental Health Division staff.

Gourdneck Creek above Sunset Lake (State of Michigan Basin ID #: 34 51)
	Gourdneck Creek
		GOU-10	West side of Oakland Drive, south of Osterhout Avenue	Schoolcraft Township (5)
		GOU-15	Inlet to Gourdneck lake @ West end	Schoolcraft Township (3)
		GOU-25	West side of Portage Road, south of Mandigo Avenue	Schoolcraft Township (3)
		GOU-30	West side of South 23rd Street, south of East 'TU' Avenue	Schoolcraft Township (1)

Sample	Sample	E. coli Bacteria	Water Temperature	Dissolved Oxygen		pH	Conductivity	TDS	Turbidity
*Site Code: GOU-10, Gourdneck Creek*
Date	Time	(MPN)	(degrees F)	mg/L	% Saturation	(units)	(mS / cm)	(g / L)	(NTU)
06/02/2009	09:20	53.8	N/A	N/A	N/A	N/A	N/A	N/A	2.0
04/09/2009	14:00	9.8	50.7	6.5	58.2%	8.81	0.435	0.3	2.6
11/25/2008	11:35	101.4	37.0	10.9	80.8%	8.61	0.451	0.3	1.7
09/30/2008	12:00	123.6	64.5	5.7	60.5%	7.10	0.398	0.3	2.2
08/05/2008	12:20	88.0	77.3	4.2	51.3%	7.73	0.436	0.3	1.4
06/12/2008	13:45	46.4	78.8	N/A	N/A	7.78	0.436	0.3	1.8
03/20/2008	10:00	16.1	36.1	12.3	89.5%	7.91	0.398	0.3	1.9
03/05/2008	08:35	7.3	35.1	11.3	81.1%	7.81	0.425	0.3	3.1
04/03/2007	11:15	21.6	53.9	8.5	78.7%	8.33	0.465	0.3	0.9
01/09/2007	13:35	21.3	34.1	14.7	104.3%	8.48	0.417	0.3	3.1
10/31/2006	10:32	31.8	50.3	9.9	88.5%	8.21	0.445	0.3	0.9
08/03/2006	11:35	272.3	78.8	2.4	29.8%	7.63	0.405	0.3	N/A
05/16/2006	08:05	22.5	N/A	N/A	N/A	N/A	N/A	N/A	N/A
04/06/2006	12:00	8.4	51.8	5.0	46.7%	8.76	0.467	0.3	8.3
01/10/2006	12:40	3.1	36.1	11.0	81.8%	8.08	0.443	0.3	4.5
11/01/2005	13:00	31.3	52.5	9.4	87.8%	8.17	0.463	0.3	2.0
09/20/2005	11:55	101.4	67.8	4.7	54.0%	7.65	0.443	0.3	1.7
07/28/2005	14:10	60.2	77.3	6.2	76.1%	7.68	0.420	0.3	0.9
05/19/2005	12:30	33.1	60.3	7.2	74.3%	7.82	0.468	0.3	2.0
04/05/2005	13:00	7.5	N/A	N/A	N/A	N/A	N/A	N/A	N/A
03/08/2005	12:30	22.6	36.6	10.5	78.8%	7.49	0.420	0.3	3.2
01/12/2005	11:20	4.1	35.0	10.0	73.3%	7.60	0.438	0.3	5.7
11/10/2004	10:40	19.9	41.3	10.1	81.2%	7.68	0.451	0.3	2.4
10/07/2004	11:00	18.9	54.0	7.0	66.7%	7.77	0.451	0.3	1.0
09/09/2004	08:10	59.4	66.7	3.3	36.3%	7.53	0.435	0.3	2.8
08/12/2004	13:51	51.2	63.5	5.7	60.9%	7.45	0.403	0.3	2.6
07/07/2004	11:17	86.2	75.5	4.7	57.6%	7.39	0.343	0.2	3.1
05/21/2004	11:37	79.4	70.8	5.8	67.7%	7.68	0.404	0.3	1.7
04/28/2004	13:29	9.7	52.7	9.5	89.7%	8.30	0.431	0.3	2.3
02/18/2004	10:35	2.0	33.3	10.8	77.9%	7.76	0.460	0.3	5.6
01/29/2004	10:40	4.1	33.5	9.2	66.1%	7.67	0.438	0.3	5.3
01/08/2004	10:56	2.0	33.9	14.2	103.0%	7.98	0.414	0.3	3.8
11/13/2003	14:20	59.8	38.8	12.0	94.3%	8.79	0.391	0.3	5.2
10/30/2003	12:40	6.3	45.2	11.4	96.2%	8.92	0.393	0.3	2.0
10/02/2003	12:30	24.0	45.7	9.0	77.3%	8.84	0.393	0.3	2.0
09/17/2003	13:45	124.6	69.6	6.2	70.4%	7.81	0.397	0.3	0.0
09/03/2003	11:32	47.1	68.6	6.6	76.0%	7.94	0.376	0.2	0.5
08/27/2003	12:17	95.9	77.5	3.8	46.8%	7.61	0.379	0.2	0.2
08/13/2003	09:50	29.8	72.3	3.4	40.2%	7.64	0.361	0.2	2.1
07/30/2003	10:51	56.1	72.1	3.5	41.9%	7.66	0.425	0.3	6.9
07/16/2003	12:15	58.3	73.8	5.5	66.6%	7.86	0.419	0.3	5.1
07/01/2003	10:17	157.6	72.6	4.7	55.5%	7.54	0.424	0.3	0.9
06/17/2003	12:25	90.7	74.7	6.6	80.7%	7.64	0.429	0.3	4.9
06/03/2003	12:40	47.1	65.1	8.4	93.1%	7.87	0.426	0.3	2.0
05/23/2003	11:40	83.9	62.8	8.0	85.3%	7.93	0.431	0.3	0.2
03/26/2003	12:25	4.1	57.7	11.7	109.3%	7.19	0.427	0.3	N/A
03/06/2003	11:30	2.0	34.2	14.4	103.9%	7.87	0.536	0.3	N/A
11/20/2002	13:55	4.1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
11/06/2002	13:35	28.1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
10/16/2002	13:45	43.2	N/A	N/A	N/A	N/A	N/A	N/A	N/A
05/15/2002	11:45	9.5	N/A	N/A	N/A	N/A	N/A	N/A	N/A
09/25/2001	10:52	90.7	52.6	N/A	N/A	N/A	N/A	N/A	N/A
09/18/2001	10:06	53.8	61.9	N/A	N/A	N/A	N/A	N/A	N/A
08/21/2001	11:20	60.1	65.5	N/A	N/A	N/A	N/A	N/A	N/A
08/07/2001	11:11	54.6	78.8	N/A	N/A	N/A	N/A	N/A	N/A
07/24/2001	11:26	131.7	70.1	N/A	N/A	N/A	N/A	N/A	N/A
07/10/2001	12:06	53.8	75.0	N/A	N/A	N/A	N/A	N/A	N/A
06/26/2001	13:00	27.5	79.0	N/A	N/A	N/A	N/A	N/A	N/A
06/12/2001	12:25	59.1	74.0	N/A	N/A	N/A	N/A	N/A	N/A
05/30/2001	12:15	13.4	65.0	N/A	N/A	N/A	N/A	N/A	N/A
05/15/2001	13:00	11.0	64.1	N/A	N/A	N/A	N/A	N/A	N/A
05/01/2001	10:23	16.8	65.9	N/A	N/A	N/A	N/A	N/A	N/A
Summary Statistics	Count	62	55	43	43	44	44	44	42
	Average	47.8	58.6	8.0	73.0%	7.91	0.425	0.3	2.7
	Minumum	2.0	33.3	2.4	29.8%	7.10	0.343	0.2	0.0
	Maximum	272.3	79.0	14.7	109.3%	8.92	0.536	0.3	8.3

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for GOU-10 (Gourdneck Creek) between May 2001 and June 2009. This site is located in Section Number 5 of Schoolcraft Township, West side of Oakland Drive, south of Osterhout Avenue.

		0 out of 62 water sample results exceeded 300 bacteria colonies per 100 ml of water.
		3 out of 62 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.
		59 out of 62 water sample results were less than 130 bacteria colonies per 100 ml of water.

Sample	Sample	E. coli Bacteria	Water Temperature	Dissolved Oxygen		pH	Conductivity	TDS	Turbidity
*Site Code: GOU-15, Gourdneck Creek*
Date	Time	(MPN)	(degrees F)	mg/L	% Saturation	(units)	(mS / cm)	(g / L)	(NTU)
05/15/2002	10:50	33.7	N/A	N/A	N/A	N/A	N/A	N/A	N/A
09/18/2001	10:20	517.2	59.8	N/A	N/A	N/A	N/A	N/A	N/A
08/21/2001	10:32	228.2	68.1	N/A	N/A	N/A	N/A	N/A	N/A
08/07/2001	10:41	238.2	74.3	N/A	N/A	N/A	N/A	N/A	N/A
07/24/2001	10:20	1,119.9	72.7	N/A	N/A	N/A	N/A	N/A	N/A
07/10/2001	11:30	285.1	74.0	N/A	N/A	N/A	N/A	N/A	N/A
06/26/2001	11:55	727.0	76.0	N/A	N/A	N/A	N/A	N/A	N/A
06/12/2001	11:45	2,419.2	72.0	N/A	N/A	N/A	N/A	N/A	N/A
05/30/2001	11:23	159.7	60.5	N/A	N/A	N/A	N/A	N/A	N/A
05/15/2001	11:30	261.3	62.8	N/A	N/A	N/A	N/A	N/A	N/A
05/01/2001	10:46	32.3	61.9	N/A	N/A	N/A	N/A	N/A	N/A
Summary Statistics	Count	11	10	0	0	0	0	0	0
	Average	547.4	68.2
	Minumum	32.3	59.8
	Maximum	2,419.2	76.0

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for GOU-15 (Gourdneck Creek) between May 2001 and May 2002. This site is located in Section Number 3 of Schoolcraft Township, Inlet to Gourdneck lake @ West end.

		4 out of 11 water sample results exceeded 300 bacteria colonies per 100 ml of water.
		5 out of 11 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.
		2 out of 11 water sample results were less than 130 bacteria colonies per 100 ml of water.

Sample	Sample	E. coli Bacteria	Water Temperature	Dissolved Oxygen		pH	Conductivity	TDS	Turbidity
*Site Code: GOU-25, Gourdneck Creek*
Date	Time	(MPN)	(degrees F)	mg/L	% Saturation	(units)	(mS / cm)	(g / L)	(NTU)
06/02/2009	09:10	186.0	N/A	N/A	N/A	N/A	N/A	N/A	1.7
04/09/2009	13:35	1.0	48.5	6.9	59.5%	8.69	0.410	0.3	1.2
11/25/2008	11:10	24.6	40.3	9.9	76.9%	8.52	0.401	0.3	1.3
09/30/2008	11:35	45.7	66.7	5.6	60.8%	8.16	0.363	0.2	1.9
08/05/2008	10:50	65.7	77.8	4.4	53.9%	8.03	0.385	0.3	2.2
06/12/2008	13:20	98.8	75.9	8.3	98.8%	8.20	0.417	0.3	1.8
03/20/2008	09:50	11.0	38.9	11.0	83.9%	8.16	0.407	0.3	1.1
03/05/2008	08:20	3.1	34.8	12.5	89.6%	8.08	0.432	0.3	1.5
04/03/2007	10:50	18.7	50.4	8.8	78.6%	8.25	0.438	0.3	1.0
01/09/2007	12:45	7.4	37.9	12.4	93.2%	8.53	0.416	0.3	1.1
10/31/2006	10:10	3.1	49.8	8.0	71.0%	7.95	0.422	0.3	0.7
05/16/2006	08:40	110.0	N/A	N/A	N/A	N/A	N/A	N/A	N/A
04/06/2006	11:30	15.3	47.2	5.4	47.3%	8.72	0.442	0.3	6.0
01/10/2006	12:10	6.3	37.0	10.0	76.1%	8.10	0.460	0.3	3.4
11/01/2005	12:10	65.0	52.8	7.3	68.5%	7.89	0.445	0.3	2.4
09/20/2005	11:15	90.9	68.7	4.5	50.8%	7.71	0.419	0.3	2.3
07/28/2005	13:45	93.3	77.8	6.4	80.1%	8.12	0.376	0.2	0.7
05/19/2005	12:15	146.7	57.8	9.4	94.3%	8.25	0.437	0.3	2.3
04/05/2005	12:35	5.2	N/A	N/A	N/A	N/A	N/A	N/A	N/A
03/08/2005	11:55	10.7	37.0	10.5	79.7%	7.99	0.431	0.3	2.7
01/12/2005	11:05	8.4	35.8	10.6	79.7%	7.74	0.435	0.3	4.2
11/10/2004	10:25	21.6	47.7	7.7	67.3%	7.54	0.444	0.3	4.9
10/07/2004	10:45	29.2	58.2	5.3	53.3%	7.89	0.402	0.3	5.8
09/09/2004	08:40	36.8	68.0	2.8	29.9%	7.58	0.422	0.3	0.6
08/12/2004	14:32	18.7	67.7	4.9	54.9%	7.62	0.380	0.2	0.5
07/07/2004	11:30	133.4	74.5	4.5	54.8%	7.73	0.360	0.2	1.8
05/21/2004	12:00	42.8	67.8	5.8	66.0%	7.78	0.379	0.2	1.4
04/28/2004	13:45	17.3	59.2	11.2	114.4%	8.42	0.399	0.3	1.2
02/18/2004	10:50	1.0	34.6	11.3	83.1%	8.18	0.407	0.3	9.5
01/29/2004	12:34	1.0	33.7	12.0	85.7%	8.13	0.397	0.3	5.9
01/08/2004	11:17	14.5	32.7	12.3	87.9%	8.07	0.390	0.3	2.0
11/13/2003	14:12	14.5	44.8	9.7	84.5%	8.58	0.384	0.3	2.0
10/30/2003	12:11	46.7	50.1	10.1	90.2%	8.82	0.379	0.2	2.0
10/02/2003	13:00	49.6	53.7	6.7	63.9%	8.68	0.382	0.2	1.8
09/17/2003	13:54	73.8	71.8	5.9	69.7%	7.87	0.370	0.2	0.4
09/03/2003	09:30	63.8	70.2	7.1	81.6%	8.35	0.362	0.2	1.3
08/27/2003	14:00	165.8	79.4	5.2	66.0%	7.74	0.350	0.2	3.8
08/13/2003	11:27	161.6	74.3	5.0	60.8%	7.90	0.354	0.2	1.9
07/30/2003	11:10	84.2	73.2	4.5	54.0%	7.85	0.371	0.2	2.0
07/16/2003	12:30	135.4	74.4	6.1	73.9%	8.16	0.366	0.2	49.4
07/01/2003	10:37	137.6	73.3	6.6	78.1%	8.06	0.392	0.3	0.8
06/17/2003	11:40	72.3	70.5	6.8	79.4%	8.02	0.394	0.3	3.1
06/03/2003	11:45	113.7	62.6	9.4	100.6%	8.23	0.395	0.3	1.9
05/23/2003	11:53	187.2	60.1	9.0	93.0%	8.27	0.403	0.3	0.0
03/26/2003	10:25	7.4	47.9	15.3	126.1%	7.10	0.444	0.3	N/A
03/06/2003	12:10	1.0	36.3	15.0	112.7%	8.30	0.405	0.3	N/A
11/20/2002	13:00	1.0	N/A	N/A	N/A	N/A	N/A	N/A	N/A
11/06/2002	12:40	4.1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
10/16/2002	13:05	57.6	N/A	N/A	N/A	N/A	N/A	N/A	N/A
05/15/2002	12:27	86.2	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Summary Statistics	Count	50	43	43	43	43	43	43	42
	Average	55.9	56.3	8.2	76.2%	8.09	0.402	0.3	3.4
	Minumum	1.0	32.7	2.8	29.9%	7.10	0.350	0.2	0.0
	Maximum	187.2	79.4	15.3	126.1%	8.82	0.460	0.3	49.4

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for GOU-25 (Gourdneck Creek) between May 2002 and June 2009. This site is located in Section Number 3 of Schoolcraft Township, West side of Portage Road, south of Mandigo Avenue.

		0 out of 50 water sample results exceeded 300 bacteria colonies per 100 ml of water.
		8 out of 50 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.
		42 out of 50 water sample results were less than 130 bacteria colonies per 100 ml of water.

Sample	Sample	E. coli Bacteria	Water Temperature	Dissolved Oxygen		pH	Conductivity	TDS	Turbidity
*Site Code: GOU-30, Gourdneck Creek*
Date	Time	(MPN)	(degrees F)	mg/L	% Saturation	(units)	(mS / cm)	(g / L)	(NTU)
06/02/2009	08:45	67.0	N/A	N/A	N/A	N/A	N/A	N/A	0.9
04/09/2009	13:20	12.1	47.0	6.4	54.6%	8.63	0.412	0.3	1.1
11/25/2008	10:55	238.2	36.8	9.2	67.6%	8.15	0.415	0.3	1.2
09/30/2008	11:15	86.0	63.6	1.7	18.1%	7.62	0.378	0.2	1.9
08/05/2008	22:30	88.4	74.4	0.8	9.1%	7.37	0.400	0.3	2.2
08/05/2008	10:30	88.4	74.4	0.8	91.0%	7.37	0.400	0.3	2.2
06/12/2008	13:05	108.1	74.7	4.0	46.9%	7.36	0.422	0.3	2.1
03/20/2008	09:35	22.8	36.1	12.3	90.0%	7.78	0.413	0.3	1.4
03/05/2008	08:00	44.1	32.4	11.9	82.2%	7.91	0.424	0.3	1.5
04/03/2007	10:35	43.7	50.7	7.0	62.1%	7.97	0.435	0.3	1.2
01/09/2007	12:30	46.4	35.4	12.0	86.6%	8.18	0.421	0.3	2.8
10/31/2006	09:48	71.2	50.8	6.8	60.6%	7.72	0.427	0.3	0.8
08/03/2006	11:15	1,119.9	77.5	0.8	10.3%	7.30	0.388	0.3	N/A
05/16/2006	09:30	70.3	N/A	N/A	N/A	N/A	N/A	N/A	N/A
04/06/2006	11:05	36.5	48.1	4.9	49.2%	8.25	0.454	0.3	11.7
01/10/2006	11:45	38.9	34.9	9.6	70.3%	7.90	0.451	0.3	3.8
11/01/2005	11:45	143.9	51.6	6.5	59.6%	7.63	0.456	0.3	3.4
09/20/2005	10:55	272.3	67.4	2.0	22.5%	7.35	0.428	0.3	2.3
07/28/2005	12:55	238.2	72.2	2.7	32.4%	7.13	0.385	0.3	0.5
05/19/2005	12:00	145.5	57.3	6.8	67.8%	7.67	0.451	0.3	2.9
04/05/2005	12:25	34.5	N/A	N/A	N/A	N/A	N/A	N/A	N/A
03/08/2005	11:35	143.9	33.5	9.5	68.4%	7.49	0.431	0.3	2.5
01/12/2005	10:55	61.6	35.2	10.0	73.4%	7.39	0.425	0.3	8.9
11/10/2004	10:10	67.0	44.0	7.7	64.2%	7.33	0.447	0.3	2.8
10/07/2004	10:30	344.8	53.7	5.0	47.6%	7.54	0.423	0.3	1.4
09/09/2004	08:48	248.1	66.5	2.2	23.7%	7.30	0.429	0.3	2.1
08/12/2004	15:00	579.4	70.1	7.7	88.7%	8.66	0.370	0.2	5.6
07/07/2004	11:05	328.1	73.4	1.7	20.1%	7.03	0.357	0.2	1.0
05/21/2004	12:33	166.4	67.7	3.9	43.5%	7.35	0.384	0.3	0.6
04/28/2004	14:10	25.6	56.0	8.4	83.0%	7.89	0.403	0.3	2.1
02/18/2004	11:20	30.1	33.6	9.9	71.9%	7.89	0.413	0.3	7.9
01/29/2004	12:55	28.5	31.7	9.7	67.2%	7.88	0.405	0.3	7.0
01/08/2004	11:45	36.4	31.8	10.8	75.8%	7.71	0.394	0.3	2.9
11/13/2003	13:45	133.3	41.5	11.7	95.1%	8.62	0.384	0.3	3.2
10/30/2003	11:51	116.0	46.7	7.7	66.8%	8.69	0.402	0.3	3.2
10/02/2003	12:05	435.2	47.7	6.6	57.9%	8.50	0.388	0.3	1.9
09/17/2003	13:31	410.6	67.1	4.1	45.9%	7.77	0.386	0.3	0.3
09/03/2003	10:05	365.4	67.7	4.3	48.0%	7.64	0.375	0.2	1.3
08/27/2003	14:35	410.6	78.1	3.5	44.2%	7.36	0.359	0.3	0.3
08/13/2003	12:50	307.6	73.5	3.4	40.5%	7.44	0.357	0.2	1.0
07/30/2003	11:22	248.1	71.9	3.0	35.9%	7.48	0.383	0.3	1.5
07/16/2003	13:30	166.9	74.4	5.6	68.5%	7.78	0.380	0.2	5.8
07/01/2003	11:10	185.0	72.2	4.5	53.5%	7.41	0.405	0.3	0.7
06/17/2003	11:30	235.9	70.9	4.4	52.0%	7.52	0.399	0.3	3.8
06/03/2003	11:30	307.6	62.3	6.7	71.5%	7.70	0.412	0.3	2.0
05/23/2003	12:05	151.5	59.7	7.1	72.6%	7.70	0.414	0.3	0.9
03/26/2003	11:05	65.7	42.6	10.9	90.1%	7.10	0.414	0.3	N/A
03/06/2003	13:00	35.9	33.7	13.9	100.1%	8.09	0.454	0.3	N/A
11/20/2002	11:05	61.3	N/A	N/A	N/A	N/A	N/A	N/A	N/A
11/06/2002	11:35	68.9	N/A	N/A	N/A	N/A	N/A	N/A	N/A
10/16/2002	10:25	248.1	N/A	N/A	N/A	N/A	N/A	N/A	N/A
05/15/2002	12:05	50.4	56.8	7.0	67.8%	7.61	0.418	0.3	N/A
Summary Statistics	Count	52	46	46	46	46	46	46	43
	Average	174.6	55.4	6.5	59.1%	7.72	0.408	0.3	2.7
	Minumum	12.1	31.7	0.8	9.1%	7.03	0.357	0.2	0.3
	Maximum	1,119.9	78.1	13.9	100.1%	8.69	0.456	0.3	11.7

Above represents the summary statistics of ambient water quality conditions and below is a summary of E. coli bacteria results for GOU-30 (Gourdneck Creek) between May 2002 and June 2009. This site is located in Section Number 1 of Schoolcraft Township, West side of South 23rd Street, south of East 'TU' Avenue.

		10 out of 52 water sample results exceeded 300 bacteria colonies per 100 ml of water.
		15 out of 52 water sample results were between 130 and 299 bacteria colonies per 100 ml of water.
		27 out of 52 water sample results were less than 130 bacteria colonies per 100 ml of water.