Table 3 Groundwater flow, Pore water Total and Soluble Reactive Phosphorus concentrations (mg/L), and Loads (mg/m² day) (mean, standard deviation, minimum and maximum) by sampling site at Oneida Lake during summer 2020.

From: Groundwater inputs could be a significant but often overlooked source of phosphorus in lake ecosystems

Parameter	Summary/site	E1	N1	N2	N3	NW1	S1	S2	S3	S4	SW1	North Shore	South Shore	All
Flow L/m2 Day	n	11	6	10	6	ND	9	11	6	14	9	27	49	87
	Mean	1.92	0.47	− 0.12	0.76		− 0.31	1.54	0.48	1.22	0.57	0.26	0.80	0.77
	SD	2.22	0.40	0.52	0.17		0.44	1.09	0.43	1.55	0.63	0.56	1.20	1.31
	Min	− 0.52	0.16	− 0.93	0.56		− 0.88	0.37	− 0.16	− 0.09	− 0.09	− 0.93	− 0.88	− 0.93
	Max	5.12	1.20	0.51	0.97		0.40	4.16	0.97	4.61	1.41	1.20	4.61	5.12
TP mg/L	n	11	6	10	6	5	9	11	6	14	9	27	49	87
	Mean	34.96	31.67	49.87	11.23	4.47	13.64	23.78	11.53	26.92	21.76	28.73	21.09	25.22
	SD	37.59	34.23	44.96	9.87	3.22	8.62	28.08	13.79	19.88	26.65	36.17	21.50	29.02
	Min	0.88	0.83	0.56	0.24	0.68	0.65	0.17	0.36	9.93	0.69	0.24	0.17	0.17
	Max	88.00	88.43	102.35	24.80	8.67	22.21	72.09	33.78	62.39	64.82	102.35	72.09	102.35
SRP mg/L	n	11	6	10	6	5	9	11	6	14	9	27	49	87
	Mean	0.06	0.07	0.17	0.08	0.18	0.10	0.06	0.12	0.08	0.05	0.13	0.08	0.09
	SD	0.02	0.02	0.25	0.02	0.11	0.05	0.01	0.10	0.05	0.01	0.16	0.05	0.10
	Min	0.04	0.04	0.03	0.06	0.04	0.02	0.02	0.06	0.01	0.04	0.03	0.01	0.01
	Max	0.11	0.11	0.85	0.10	0.29	0.16	0.07	0.30	0.20	0.07	0.85	0.30	0.85
SRP:TP Ratio	n	11	6	10	6	5	9	11	6	14	9	27	49	87
	Mean	0.024	0.025	0.039	0.101	0.108	0.012	0.035	0.087	0.005	0.020	0.064	0.026	0.037
	SD	0.035	0.050	0.070	0.164	0.180	0.008	0.078	0.087	0.005	0.023	0.118	0.054	0.079
	Min	0.0005	0.0007	0.0004	0.0039	0.0201	0.0024	0.0007	0.0021	0.0002	0.0006	0.0004	0.0002	0.0002
	Max	0.083	0.115	0.227	0.401	0.430	0.025	0.259	0.200	0.019	0.057	0.430	0.259	0.430
TP mg/m2 Day	n	11	6	10	6	5	9	11	6	14	9	27	49	87
	Mean	74.84	6.28	4.88	7.57	1.98	0.84	40.73	5.78	31.11	20.40	5.25	22.64	23.85
	SD	133.25	8.23	11.65	6.27	1.93	2.52	51.59	6.43	46.47	33.90	8.47	39.47	58.29
	Min	− 0.06	0.00	− 0.05	0.17	− 0.01	− 0.04	0.19	0.00	− 0.01	0.00	− 0.05	− 0.04	− 0.06
	Max	450.91	22.41	36.34	16.29	4.58	7.56	143.62	13.19	175.12	85.25	36.34	175.12	450.91
SRP mg/m2 Day	n	11	6	10	6	5	9	11	6	14	9	27	49	87
	Mean	0.086	0.035	− 0.002	0.059	0.075	− 0.003	0.092	0.078	0.117	0.029	0.03	0.07	0.06
	SD	0.12	0.04	0.02	0.02	0.07	0.01	0.07	0.11	0.24	0.03	0.05	0.14	0.12
	Min	− 0.016	0.013	− 0.035	0.037	− 0.029	− 0.016	0.008	− 0.003	− 0.002	− 0.003	− 0.03	− 0.002	− 0.002
	Max	0.35	0.11	0.03	0.08	0.15	0.018	0.257	0.294	0.915	0.078	0.15	0.91	0.91

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Table 3 Groundwater flow, Pore water Total and Soluble Reactive Phosphorus concentrations (mg/L), and Loads (mg/m² day) (mean, standard deviation, minimum and maximum) by sampling site at Oneida Lake during summer 2020.

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