SWAT LAB Performance Evaluation Studies for Polluted Waters (2 per year)  Double Blind Testing
		WP08-2		WP07-3B		WP07-2		WP06-4		WP-118		WP-112		WP-106		WP-101		WP-096		WP-093
Analyte	Method #	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE	Reported	TRUE
Ca	EPA 200.7	19.2	18.9	12.73	12.8	23.7	22	29.9	30.21	29.5	28.8	19.5	18.4	93.9	85.2	51.6	50.6	108.6	100	78	77.2
Ca Hard.	Calc	47.9	47.1	31.79	31.83	59.2	56.87	74.56	75.51	73.56	71.9	48.6	46	234.3	213
Mg	EPA 200.7	11	10.5	27.74	27.28	13.8	12.7	10.7	11.09	2.44	2.63	14.3	13.8	18.6	17.4	1.81	1.79	9	8.45	28.6	28.9
K	EPA 200.7	21.1	20.9	9.64	9.49	42.2	41.87	18.2	19.75	15.6	16.7	8.16	8.3	24.9	24.1	8.66	8.71	35	35.2	20.5	21.4
Na	EPA 200.7	57.7	54.9	12.52	12.25	74	70.95	29.5	32.15	61.7	66.6	100.6	98.5	31.1	29.6	51.5	51.2	22.4	22.4	56.1	63
Total Hard.	Calc	93.2	90.1	146.02	143	116	106	118.6	120	83.62	83	107.4	103	311	284	136.3	134	308.2	285	312.6	312
Sb	EPA 200.7-8	594	712	178	188.2	607	752	745	653.3	691.2	660	669	667	1300	1240	258	267	363	375	243	267
As	EPA 200.7-8	236	244	162	161.2	765	694.5	174.6	165.3	628.7	590	577	570	558	550	490	500	151	150	110	83
Ba	EPA 200.7-8	1766	1787	599	594.6	152	137.2	1821	1787	558.7	545	458	433	174	160	784	733	858	825	364	333
Be	EPA 200.7-8	313	328	66.3	64.39	345	315.5	702.1	676.2	144.5	140	611	607	312	310	334	333	203	200	318	333
Cd	EPA 200.7-8	210	222	149	148.3	632	590.7	286.9	278.6	364.2	360	655	683	733	733	499	500	119	113	613	600
Cr	EPA 200.7-8	891	909	101	99.89	218	203.1	237.3	224.1	772	740	552	527	995	940	704	667	509	500	894	833
Cu	EPA 200.7-8	424	457	343	334.9	713	688	576.1	562.7	681.9	680	808	817	175	168	685	667	457	450	251	267
Pb	EPA 200.7-8	1478	1502	313	304.7	2219	2049	1910	1870	2012	2010	1958	1900	696	655	498	467	1440	1430	3120	2900
Ni	EPA 200.7-8	2733	2752	171	163.4	885	799.2	1600	1578	1563	1540	370	363	2420	2250	2117	2000	1300	1250	2765	2500
Se	EPA 200.7-8	257	244	561	522.3	435	374.1	1594	1436	322.2	305	1336	1350	1330	1090	874	833	183	175	1010	1100
Tl	EPA 200.7-8	170	169	407	409.3	833	680.2	760	692.3	809.5	765	864	663	184	150	690	667	410	300	314	300
V	EPA 200.7-8	1551	1625	788	766.8	1097	1017	1136	1107	332.4	330	112	110	1060	1040	6783	6670	1240	1250	410	400
Al	EPA 200.7	293	326	691	711.4	334	338.5	1270	1274	2222	2230	1764	1770	1300	1240	2393	2670	2370	2500	3270	3330
B	EPA 200.7	921	883	995	1045	1108	1015	1983	1869	891.5	870	911	925	1020	1030	1773	1750
Co	EPA 200.7-8	854	872	219	213.8	977	894.9	655.5	621.8	613.7	595	944	943	331	318	452	433	75	75	710	667
Fe	EPA 200.7-8	1821	1932	459	452.7	1845	1751	689	696	2774	2760	355	340	917	858	3503	3330	1770	1750	1780	1670
Mn	EPA 200.7	1975	2021	696	690.9	1929	1789	311	301.6	1223	1210	3924	3610	1650	1520	2667	2500	125	113	3153	2900
Mo	EPA 200.7-8	123	121	103	102.5	544	434.8	394.5	385.1	585.3	575	565	560	239	225	205	200	52	50	141	160
Ag	EPA 200.7-8	46	50	79.7	80.51	167	171.2	362.7	303.2	75.4	65	172	187	170	168	440	433	259	250	336	333
Sr	EPA 200.7	256	266	228	222.5	217	201.1	175.6	169	204.3	200	92	93	202	190	311	300	279	275	297	300
Sn	EPA 200.7-8	1180	1350	1632	1672	1788	1832	2491	2516	3274	3210	1223	1990	4520	4050	1520	1670	2247	2880	793	1000
Ti	EPA 200.7-8	316	293	198	198.6	124	123.2	268.1	238	157.5	150	281	280	252	240	97	100	252	213	157	133
Zn	EPA 200.7-8	785	785	679	680.1	1880	1715	295	265.5	1628	1600	1385	1420	898	870	206	267	1050	1000	911	867
Hg	EPA 200.8	20.51	19.16	4.9	5.972	6.44	5.55	19.2	18.96	10.1	9.86	11.3	11.6	15.7	9.88	22.2	20	30.6	16
- Entries in gold (yellow) indicate a warning
- Entries in red indicate a missed value