Table 9. Summary of seasonal nutrients, major ions, and dissolved organic carbon data for the North Unit and South Unit, Wood River Wetland, upper Klamath River basin, Oregon, 2003–05.

[Abbreviations: N, nitrogen; μg/L, microgram per liter; mg/L, milligram per liter; min, minimum; max, maximum; n, number of observations; <, less than; MDL, method detection limit; –, no data]

Wetland unit	Date	Dissolved nitrite+nitrate-N (NO2+NO3) (μg/L)					Dissolved ammonium-N (NH3+NH4) (μg/L)					Dissolved inorganic nitrogen (DIN) (μg/L)					Dissolved Kjeldahl + ammonium-N (DKN) (μg/L)
		median	min	max	n		median	min	max	n		median	min	max	n		median	min	max	n
North Unit	05-12-03	50	26	210	4		270	44	750	4		320	71	960	4		–	–	–	0
	06-19-03	5.4	1.4	23	5		500	89	680	5		510	90	710	5		–	–	–	0
	08-27-03	6.8	1.2	7	5		210	2.3	1,250	5		210	9.1	1,260	5		–	–	–	0
	12-03-03	2,270	350	5,120	4		580	500	840	4		2,940	930	5,710	4		–	–	–	0
	03-29-04	3.5	< MDL	13	6		45	22	48	6		50	22	59	6		2,670	2,530	2,810	6
	04-27-04	28	4.1	59	5		500	120	820	6		515	120	880	6		3,680	2,910	4,060	5
	06-03-04	100	< MDL	190	5		450	200	710	5		610	200	900	5		4,170	3,870	4,650	5
	07-09-04	1.3	0.4	11	6		990	470	2,470	6		995	470	2,470	6		7,550	5,980	9,000	6
	08-17-04	0.5	< MDL	3	6		165	42	2,710	6		165	42	2,710	6		5,210	2,160	11,600	6
	09-28-04	1.7	1.2	3	5		10	5.8	27	5		12	7.1	29	5		180	140	1,070	5
	06-08-05	93	19	380	7		440	260	610	7		560	370	940	7		5,580	4,230	6,700	7
	07-21-05	2.8	1.4	7.7	6		895	380	2,760	6		895	390	2,770	6		8,960	2,880	13,600	6
	08-25-05	2.5	1.3	5.5	5		200	86	580	5		200	87	580	5		2,750	1,310	12,600	5
	09-27-05	1.1	0.2	2.4	5		14	6.9	27	5		14	7.1	29	5		310	240	1,420	5
South Unit	05-13-03	340	250	460	11		270	130	420	11		660	430	760	11		–	–	–	0
	06-19-03	335	300	380	4		515	460	660	4		855	840	960	4		–	–	–	0
	07-16-03	190	110	260	7		630	500	740	7		760	690	930	7		–	–	–	0
	08-27-03	18	4.9	94	6		465	260	720	6		525	270	760	6		–	–	–	0
	12-03-03	15	1.7	48	5		250	120	2,060	5		260	150	2,110	5		–	–	–	0
	03-30-04	81	50	130	8		955	630	1,380	8		1,040	760	1,430	8		8,060	7,290	8,900	8
	04-28-04	490	270	690	6		1,780	1,190	2,240	6		2,340	1,880	2,540	6		9,150	4,520	9,500	6
	06-02-04	340	170	390	6		360	270	970	6		745	560	1,140	6		9,220	8,410	10,800	6
	07-09-04	205	92	240	6		505	290	860	6		685	530	950	6		15,100	14,600	15,500	6
	08-17-04	2.6	< MDL	25	4		895	280	5,840	4		905	280	5,850	4		28,900	26,600	35,100	4
	09-28-04	2.7	< MDL	5.6	6		86	28	350	6		89	32	350	6		455	290	11,900	6
	06-09-05	550	240	820	6		490	300	630	6		1,040	870	1,290	6		8,480	7,830	9,070	6
	07-22-05	22	5	180	7		1,110	140	1,840	7		1,130	150	1,860	7		14,800	8,000	16,900	7
	08-24-05	10	< MDL	61	7		820	110	2,020	7		870	110	2,030	7		29,300	12,600	36,700	7
	09-28-05	1.7	< MDL	4.6	5		170	46	630	5		170	47	630	5		4,610	2,390	38,600	5

Wetland unit	Date	Total Kjeldahl-N + ammonium-N (TKN) (μg/L)					Total Kjeldahl-N + ammonium - N + nitrite+nitrate-N (TN) (μg/L)					Soluble reactive phosphorus (SRP) (μg/L)					Total phosphorus (TP) (μg/L)
		median	min	max	n		median	min	max	n		median	min	max	n		median	min	max	n
North Unit	05-12-03	4,100	3,600	4,600	3		4,160	3,640	4,810	3		585	260	690	4		800	600	900	3
	06-19-03	5,110	2,140	6,090	5		5,120	2,140	6,110	5		610	210	1,500	5		840	280	1,670	5
	08-27-03	7,810	750	13,800	4		7,820	750	13,800	4		2,290	44	2,970	5		1,980	88	4,500	4
	12-03-03	3,310	3,130	3,590	4		5,520	3,570	8,700	4		79	41	200	4		185	140	350	4
	03-29-04	3,000	2,760	3,060	6		3,000	2,760	3,060	6		180	150	340	6		330	260	570	6
	04-27-04	4,000	3,130	4,180	5		4,000	3,130	4,180	5		580	320	720	6		670	420	830	5
	06-03-04	4,440	3,820	4,800	5		4,440	3,820	4,800	5		1,030	480	1,070	5		1,170	680	1,230	5
	07-09-04	7,410	7,160	9,450	6		7,410	7,160	9,450	6		1,570	910	2,330	6		1,810	1,180	2,700	6
	08-17-04	6,230	2,420	12,700	6		6,230	2,420	12,700	6		505	73	2,940	6		2,100	260	6,660	6
	09-28-04	280	230	2,690	5		280	230	2,690	5		60	55	170	5		110	72	520	5
	06-08-05	5,420	4,200	6,330	7		5,460	4,210	6,700	7		750	340	990	7		870	390	1,160	7
	07-21-05	9,460	3,280	13,500	6		9,460	3,280	13,500	6		1,720	510	3,210	6		2,080	640	3,640	6
	08-25-05	4,560	1,350	17,500	4		4,560	1,350	17,500	4		150	46	1,580	5		655	130	3,470	4
	09-27-05	480	300	3,370	5		480	300	3,370	5		71	69	110	5		120	110	560	5
South Unit	05-13-03	6,600	6,100	6,800	11	6,910	6,530	7,090	11	4,150	3,620	4,520	11	4,400	3,900	4,900	11
	06-19-03	8,380	8,380	8,380	1	8,680	8,680	8,680	1	7,530	7,010	07,74	4	7,720	7,720	7,720	1
	07-16-03	11,700	11,200	12,300	6	11,850	11,400	12,500	6	10,700	10,400	11,100	7	11,650	11,400	12,300	6
	08-27-03	18,650	10,500	21,700	6	18,650	10,500	21,800	6	13,450	6,810	15,600	6	18,450	11,200	19,900	6
	12-03-03	14,400	12,600	19,100	5	14,400	12,700	19,100	5	4,170	3,700	6,890	5	5,070	4,240	7,730	5
	03-30-04	8,240	7,270	9,450	8	8,240	7,270	9,450	8	4,040	3,870	4,510	8	4,590	4,500	5,240	8
	04-28-04	10,450	9,620	11,200	6	10,450	9,620	11,200	6	5,150	4,100	7,500	6	6,350	5,860	6,460	6
	06-02-04	10,450	8,610	11,200	6	10,450	8,610	11,200	6	7,520	7,050	7,810	6	8,170	7,920	8,430	6
	07-09-04	14,800	14,000	17,200	6	14,800	14,000	17,200	6	12,950	12,700	13,300	6	14,300	14,000	14,700	6
	08-17-04	36,500	29,600	90,000	4	36,500	29,600	90,000	4	15,600	6,830	19,100	4	26,150	23,700	32,200	4
	09-28-04	3,470	320	12,300	6	3,470	320	12,300	6	165	88	3,520	6	505	99	5,070	6
	06-09-05	8,720	7,750	9,210	6	9,330	8,320	9,780	6	7,190	6,560	7,540	6	7,700	7,220	8,350	6
	07-22-05	14,600	9,290	17,000	7	14,600	9,300	17,000	7	14,000	6,340	14,600	7	15,600	7,890	16,000	7
	08-24-05	29,800	10,200	42,100	7	29,800	10,200	42,100	7	16,300	3,470	19,900	7	22,800	5,880	28,500	7
	09-28-05	6,970	3,470	47,400	5	6,970	3,470	47,400	5	2,810	1,960	3,670	5	3,630	2,350	20,400	5

Wetland unit	Date	Dissolved silica (Si) (mg/L)					Dissolved organic carbon (DOC) (mg/L)					Dissolved chloride (Cl) (mg/L)
		median	min	max	n		median	min	max	n		median	min	max	n
North Unit	05-12-03	–	–	–	0		62	53	66	4		8.1	8.1	8.1	1
	06-19-03	–	–	–	0		–	–	–	0		13	8.6	20	5
	08-27-03	–	–	–	0		–	–	–	0		46	8.1	51	5
	12-03-03	–	–	–	0		29	24	35	4		13	13	18	4
	03-29-04	–	–	–	0		–	–	–	0		11	11	12	6
	04-27-04	–	–	–	0		–	–	–	0		13	9.3	13	5
	06-03-04	–	–	–	0		–	–	–	0		17	12	17	5
	07-09-04	–	–	–	0		–	–	–	0		25	16	27	6
	08-17-04	58	42	73	2		–	–	–	0		21	14	45	6
	09-28-04	–	–	–	0		–	–	–	0		2.4	2.3	5.4	5
	06-08-05	–	–	–	0		–	–	–	0		17	3.0	24	7
	07-21-05	–	–	–	0		–	–	–	0		32	5.7	44	6
	08-25-05	–	–	–	0		–	–	–	0		10	4.2	63	5
	09-27-05	–	–	–	0		–	–	–	0		3.4	2.8	6.2	5
South Unit	05-13-03	–	–	–	0	98	95	100	8	28	26	29	11
	06-19-03	–	–	–	0	–	–	–	0	37	35	38	4
	07-16-03	–	–	–	0	–	–	–	0	52	51	55	7
	08-27-03	–	–	–	0	–	–	–	0	95	43	100	6
	12-03-03	–	–	–	0	190	150	270	5	76	62	110	5
	03-30-04	–	–	–	0	–	–	–	0	30	29	31	8
	04-28-04	–	–	–	0	–	–	–	0	35	34	37	6
	06-02-04	–	–	–	0	–	–	–	0	43	41	46	6
	07-09-04	–	–	–	0	–	–	–	0	70	69	71	6
	08-17-04	49	35	64	4	–	–	–	0	155	150	200	4
	09-28-04	–	–	–	0	–	–	–	0	3.0	2.3	68	6
	06-09-05	–	–	–	0	–	–	–	0	36	34	39	6
	07-22-05	–	–	–	0	–	–	–	0	66	38	71	7
	08-24-05	–	–	–	0	–	–	–	0	150	31	200	7
	09-28-05	–	–	–	0	–	–	–	0	25	15	230	5