Table 2. Summary of nutrient concentrations determined at the east canal sites in Miami-Dade County [All units in milligrams per liter as nitrogen or as phosphorus]
Category	Total organic nitrogen	Ammonia	Nitrite	Nitrate	Total nitrite plus nitrate	Total nitrogen	Total phosphorus	Ortho- phosphate
Site G-58
Mean	0.55	1.27	0.020	0.090	0.11	1.92	0.23	0.17
Median	.55	1.20	.020	.080	.10	1.95	.24	.17
Maximum	.60	1.50	.047	.154	.20	2.10	.31	.26
Minimum	.50	1.10	<.001	.020	.02	1.70	.13	.09
No. of samples	6	6	6	6	6	6	4	6
Site G-93
Mean	.58	.39	.036	.360	.39	1.37	.05	.02
Median	.52	.25	.035	.300	.35	1.30	.05	.02
Maximum	1.00	.80	.081	.570	.60	2.20	.08	.04
Minimum	.40	.05	.003	.017	.02	.61	.04	.01
No. of samples	10	10	10	10	10	10	10	10
Site S-20
Mean	1.05	.06	.003	.004	.007	1.12	.007	.002
Median	1.10	.05	.003	.004	.008	1.10	.007	.001
Maximum	1.20	.10	.006	.007	.010	1.30	.010	.010
Minimum	.83	.04	.002	.002	.002	.88	.006	<.001
No. of samples	11	11	11	11	11	11	11	11
Site S-20F
Mean	.32	.04	.016	1.21	1.23	1.58	.010	.004
Median	.32	.04	.016	1.19	1.20	1.50	.010	.002
Maximum	.47	.10	.020	1.38	1.40	1.90	.020	.010
Minimum	.21	.03	.014	.99	1.00	1.40	.007	<.001
No. of samples	10	10	10	10	10	10	10	10
Site S-20G
Mean	.40	.06	.017	.780	.79	1.21	.025	.008
Median	.40	.06	.019	.930	.95	1.30	.02	.006
Maximum	.50	.10	.028	1.180	1.20	1.70	.08	.020
Minimum	.23	.02	.004	.056	.06	.51	.01	<.001
No. of samples	7	8	8	8	8	7	8	8
Site S-21
Mean	0.58	0.19	0.019	0.37	0.39	1.16	0.012	0.006
Median	.56	.20	.022	.46	.50	1.20	.010	.004
Maximum	.75	.30	.037	.69	.70	1.70	.030	.020
Minimum	.41	.10	<.001	.07	.07	.62	.007	<.001
No. of samples	17	17	17	17	17	17	17	17
Site S-21A
Mean	.30	.03	.021	3.69	3.7	4.04	.006	.002
Median	.30	.03	.020	3.69	3.7	4.10	.005	.001
Maximum	.42	.07	.028	4.38	4.4	4.70	.010	.004
Minimum	.20	.01	.014	2.88	2.9	3.30	.004	<.001
No. of samples	7	7	7	7	7	7	7	7
Site S-22
Mean	.78	.08	.010	.12	.12	.97	.010	.004
Median	.75	.09	.009	.11	.12	.97	.010	.004
Maximum	1.10	.20	.024	.19	.20	1.20	.020	.008
Minimum	.55	.01	.004	.07	.08	.75	.006	.002
No. of samples	21	21	21	21	21	21	21	21
Site S-25
Mean	.76	.21	.015	.13	.14	1.10	.049	.023
Median	.75	.10	.013	.08	.09	1.00	.045	.014
Maximum	1.10	.50	.037	.28	.30	1.50	.100	.060
Minimum	.50	.06	.006	.07	.08	.81	.030	.004
No. of samples	14	14	14	14	14	14	14	14
Site S-25B
Mean	.79	.07	.022	.35	.37	1.20	.02	.007
Median	.79	.07	.020	.29	.32	1.20	.02	.004
Maximum	1.00	.20	.056	.59	.60	1.40	.03	.040
Minimum	.55	.01	.001	.24	.25	.89	.01	.001
No. of samples	20	20	20	20	20	20	20	20
Site S-26
Mean	1.05	0.60	0.032	0.170	0.20	1.8	0.020	0.004
Median	1.00	.61	.020	.110	.15	1.7	.020	.003
Maximum	1.70	1.10	.100	.460	.56	2.8	.050	.020
Minimum	.70	.03	.006	.002	.01	1.3	.008	.001
No. of samples	19	19	19	19	19	19	19	19
Site S-27
Mean	.79	.64	.028	.190	.22	1.6	.04	.02
Median	.70	.65	.030	.180	.21	1.7	.04	.02
Maximum	1.10	.96	.040	.300	.33	1.9	.05	.03
Minimum	.55	.41	.010	.060	.07	1.4	.03	.01
No. of samples	17	17	17	17	17	17	16	17
Site S-28
Mean	.86	.16	.011	.110	.110	1.10	.04	.014
Median	.86	.15	.009	.070	.080	1.10	.03	.010
Maximum	1.20	.47	.036	.260	.300	1.50	.07	.020
Minimum	.66	.02	.002	.001	.002	.83	.03	.008
No. of samples	18	18	18	17	18	18	18	18
Site S-29
Mean	1.02	.29	.021	.19	.22	1.51	.020	.003
Median	1.00	.30	.020	.18	.20	1.51	.020	.002
Maximum	1.30	.50	.064	.48	.50	2.10	.030	.007
Minimum	.85	.03	<.001	.06	.06	1.60	.008	<.001
No. of samples	17	17	17	17	17	17	17	17
Site S-123
Mean	.37	.16	.004	.13	.13	.58	.03	.014
Median	.39	.09	.005	.08	.09	.56	.02	.004
Maximum	.47	.70	.01	.40	.40	.87	.12	.07
Minimum	.26	.03	<.001	.01	.01	.31	.02	.002
No. of samples	7	8	8	8	8	7	8	8

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