# //UNITED STATES GEOLOGICAL SURVEY       http://water.usgs.gov/
# //NATIONAL WATER INFORMATION SYSTEM     http://water.usgs.gov/data.html
# //DATA ARE PROVISIONAL AND SUBJECT TO CHANGE UNTIL PUBLISHED BY USGS
# //RETRIEVED: 2026-09-02 11:35:02
# //WARNING
# //WARNING The stage-discharge rating provided in this file should be
# //WARNING considered provisional and subject to change. Stage-discharge
# //WARNING ratings change over time as the channel features that control
# //WARNING the relation between stage and discharge vary. Users are
# //WARNING cautioned to consider carefully the applicability of this
# //WARNING rating before using it for decisions that concern personal or
# //WARNING public safety or operational consequences.
# //FILE TYPE="NWIS RATING" 
# //DATABASE NUMBER=01 DESCRIPTION=" Standard data base for this site."
# //STATION AGENCY="USGS " NUMBER="01671200       " TIME_ZONE="EST" DST_FLAG=Y
# //STATION NAME="SOUTH ANNA RIVER NEAR GORDONSVILLE, VA"
# //LABEL="Discharge (ft^3/s)"
# //PARAMETER CODE="00060"
# //RATING SHIFTED="20260902113502 EST"
# //RATING ID="2.0" TYPE="STGQ" NAME="stage-discharge" AGING=????
# //RATING REMARKS="Rating 2.0 developed for the 2025 Water Year. More measurements to define the rating in the section control and transitioning to the channel control. Channel control found more negative than initially drawn."
# //RATING EXPANSION="logarithmic"
# //RATING OFFSET1=9.000000E-01
# //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)"
# //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)"
# //RATING_DATETIME BEGIN=20250214230000 BZONE=-05:00 END=-------------- EZONE=--- AGING=1
# //RATING_DATETIME COMMENT="Began Rating 2.0 during the falling stage at approximately 2.21 ft where the active v shift and Rating 2.0 were closely aligned."
# //SHIFT_PREV BEGIN="20260901084500" BZONE="-05:00" END="--------------" EZONE="---"
# //SHIFT_PREV STAGE1="1.44" SHIFT1="-0.06" STAGE2="2.00" SHIFT2="0.00"
# //SHIFT_PREV COMMENT="Began Rating 2.0 during the falling stage at approximately 2.21 ft where the active v shift and Rating 2.0 were closely aligned."
# //SHIFT_NEXT BEGIN="--------------" BZONE="---" END="--------------" EZONE="---"
# //SHIFT_NEXT STAGE1="---" SHIFT1="---" STAGE2="---" SHIFT2="---" STAGE3="---" SHIFT3="---"
# //SHIFT_NEXT COMMENT=" "
INDEP	SHIFT	DEP	STOR
16N	16N	16N	1S
1.06	-0.06	0.00	
1.07	-0.07	0.00	
1.08	-0.06	0.01	
1.09	-0.07	0.01	
1.10	-0.08	0.01	
1.11	-0.09	0.01	
1.12	-0.06	0.02	
1.13	-0.07	0.02	
1.14	-0.08	0.02	
1.15	-0.06	0.03	
1.16	-0.07	0.03	
1.17	-0.06	0.04	
1.18	-0.07	0.04	
1.19	-0.06	0.05	
1.20	-0.06	0.06	
1.21	-0.07	0.06	
1.22	-0.06	0.07	
1.23	-0.06	0.08	
1.24	-0.06	0.09	
1.25	-0.06	0.10	
1.26	-0.06	0.11	
1.27	-0.06	0.13	
1.28	-0.06	0.14	
1.29	-0.06	0.15	
1.30	-0.06	0.17	
1.31	-0.06	0.19	
1.32	-0.06	0.20	
1.33	-0.06	0.22	
1.34	-0.06	0.24	
1.35	-0.06	0.26	
1.36	-0.06	0.28	
1.37	-0.06	0.30	
1.38	-0.06	0.33	
1.39	-0.06	0.35	
1.40	-0.06	0.38	
1.41	-0.06	0.41	
1.42	-0.06	0.44	
1.43	-0.06	0.47	
1.44	-0.06	0.50	
1.45	-0.06	0.53	
1.46	-0.06	0.57	
1.47	-0.06	0.61	
1.48	-0.05	0.66	
1.49	-0.06	0.70	
1.50	-0.05	0.75	
1.51	-0.05	0.80	
1.52	-0.05	0.85	
1.53	-0.05	0.90	
1.54	-0.05	0.95	
1.55	-0.05	1.01	
1.56	-0.05	1.07	
1.57	-0.05	1.13	
1.58	-0.05	1.19	
1.59	-0.04	1.26	
1.60	-0.04	1.33	*
1.61	-0.04	1.40	
1.62	-0.04	1.47	
1.63	-0.04	1.55	
1.64	-0.04	1.63	
1.65	-0.04	1.73	
1.66	-0.04	1.83	
1.67	-0.04	1.93	
1.68	-0.03	2.04	
1.69	-0.03	2.16	
1.70	-0.03	2.27	
1.71	-0.03	2.40	
1.72	-0.03	2.52	
1.73	-0.03	2.66	
1.74	-0.03	2.79	
1.75	-0.03	2.94	
1.76	-0.03	3.08	
1.77	-0.02	3.24	
1.78	-0.02	3.40	
1.79	-0.02	3.56	
1.80	-0.02	3.73	
1.81	-0.02	3.90	
1.82	-0.02	4.09	
1.83	-0.02	4.27	
1.84	-0.02	4.47	
1.85	-0.02	4.67	
1.86	-0.02	4.87	
1.87	-0.01	5.08	
1.88	-0.01	5.30	
1.89	-0.01	5.53	
1.90	-0.01	5.76	
1.91	-0.01	6.00	
1.92	-0.01	6.25	
1.93	-0.01	6.51	
1.94	-0.01	6.77	
1.95	-0.01	7.04	
1.96	0.00	7.32	
1.97	0.00	7.60	
1.98	0.00	7.89	
1.99	0.00	8.20	
2.00	0.00	8.51	
2.01	0.00	8.79	
2.02	0.00	9.09	
2.03	0.00	9.39	
2.04	0.00	9.70	
2.05	0.00	10.01	
2.06	0.00	10.34	
2.07	0.00	10.67	
2.08	0.00	11.01	
2.09	0.00	11.35	
2.10	0.00	11.71	*
2.11	0.00	12.07	
2.12	0.00	12.44	
2.13	0.00	12.82	
2.14	0.00	13.21	
2.15	0.00	13.61	
2.16	0.00	14.02	
2.17	0.00	14.44	
2.18	0.00	14.86	
2.19	0.00	15.30	
2.20	0.00	15.74	*
2.21	0.00	16.18	
2.22	0.00	16.63	
2.23	0.00	17.08	
2.24	0.00	17.55	
2.25	0.00	18.02	
2.26	0.00	18.51	
2.27	0.00	19.00	
2.28	0.00	19.51	
2.29	0.00	20.02	
2.30	0.00	20.54	*
2.31	0.00	21.00	
2.32	0.00	21.46	
2.33	0.00	21.94	
2.34	0.00	22.42	
2.35	0.00	22.90	
2.36	0.00	23.39	
2.37	0.00	23.90	
2.38	0.00	24.40	
2.39	0.00	24.92	
2.40	0.00	25.44	*
2.41	0.00	25.91	
2.42	0.00	26.39	
2.43	0.00	26.88	
2.44	0.00	27.37	
2.45	0.00	27.87	
2.46	0.00	28.37	
2.47	0.00	28.88	
2.48	0.00	29.39	
2.49	0.00	29.91	
2.50	0.00	30.44	*
2.51	0.00	30.96	
2.52	0.00	31.49	
2.53	0.00	32.03	
2.54	0.00	32.57	
2.55	0.00	33.12	
2.56	0.00	33.67	
2.57	0.00	34.23	
2.58	0.00	34.79	
2.59	0.00	35.36	
2.60	0.00	35.94	
2.61	0.00	36.52	
2.62	0.00	37.10	
2.63	0.00	37.70	
2.64	0.00	38.30	
2.65	0.00	38.90	
2.66	0.00	39.52	
2.67	0.00	40.13	
2.68	0.00	40.76	
2.69	0.00	41.39	
2.70	0.00	42.02	
2.71	0.00	42.67	
2.72	0.00	43.31	
2.73	0.00	43.97	
2.74	0.00	44.63	
2.75	0.00	45.30	
2.76	0.00	45.97	
2.77	0.00	46.65	
2.78	0.00	47.34	
2.79	0.00	48.03	
2.80	0.00	48.73	
2.81	0.00	49.43	
2.82	0.00	50.14	
2.83	0.00	50.86	
2.84	0.00	51.59	
2.85	0.00	52.32	
2.86	0.00	53.06	
2.87	0.00	53.80	
2.88	0.00	54.55	
2.89	0.00	55.31	
2.90	0.00	56.07	
2.91	0.00	56.84	
2.92	0.00	57.62	
2.93	0.00	58.41	
2.94	0.00	59.20	
2.95	0.00	59.99	
2.96	0.00	60.80	
2.97	0.00	61.61	
2.98	0.00	62.43	
2.99	0.00	63.25	
3.00	0.00	64.09	
3.01	0.00	64.93	
3.02	0.00	65.77	
3.03	0.00	66.62	
3.04	0.00	67.48	
3.05	0.00	68.35	
3.06	0.00	69.22	
3.07	0.00	70.11	
3.08	0.00	70.99	
3.09	0.00	71.89	
3.10	0.00	72.79	
3.11	0.00	73.70	
3.12	0.00	74.62	
3.13	0.00	75.54	
3.14	0.00	76.47	
3.15	0.00	77.41	
3.16	0.00	78.36	
3.17	0.00	79.31	
3.18	0.00	80.27	
3.19	0.00	81.24	
3.20	0.00	82.21	
3.21	0.00	83.19	
3.22	0.00	84.18	
3.23	0.00	85.18	
3.24	0.00	86.18	
3.25	0.00	87.20	
3.26	0.00	88.22	
3.27	0.00	89.24	
3.28	0.00	90.28	
3.29	0.00	91.32	
3.30	0.00	92.37	
3.31	0.00	93.43	
3.32	0.00	94.49	
3.33	0.00	95.57	
3.34	0.00	96.65	
3.35	0.00	97.73	
3.36	0.00	98.83	
3.37	0.00	99.93	
3.38	0.00	101.05	
3.39	0.00	102.16	
3.40	0.00	103.29	
3.41	0.00	104.43	
3.42	0.00	105.57	
3.43	0.00	106.72	
3.44	0.00	107.88	
3.45	0.00	109.05	
3.46	0.00	110.22	
3.47	0.00	111.40	
3.48	0.00	112.59	
3.49	0.00	113.79	
3.50	0.00	115.00	*
3.51	0.00	116.23	
3.52	0.00	117.47	
3.53	0.00	118.71	
3.54	0.00	119.97	
3.55	0.00	121.23	
3.56	0.00	122.50	
3.57	0.00	123.78	
3.58	0.00	125.07	
3.59	0.00	126.37	
3.60	0.00	127.67	
3.61	0.00	128.99	
3.62	0.00	130.31	
3.63	0.00	131.64	
3.64	0.00	132.98	
3.65	0.00	134.33	
3.66	0.00	135.69	
3.67	0.00	137.05	
3.68	0.00	138.43	
3.69	0.00	139.81	
3.70	0.00	141.21	
3.71	0.00	142.61	
3.72	0.00	144.02	
3.73	0.00	145.44	
3.74	0.00	146.86	
3.75	0.00	148.30	
3.76	0.00	149.75	
3.77	0.00	151.20	
3.78	0.00	152.67	
3.79	0.00	154.14	
3.80	0.00	155.62	
3.81	0.00	157.11	
3.82	0.00	158.61	
3.83	0.00	160.12	
3.84	0.00	161.64	
3.85	0.00	163.17	
3.86	0.00	164.70	
3.87	0.00	166.25	
3.88	0.00	167.81	
3.89	0.00	169.37	
3.90	0.00	170.94	
3.91	0.00	172.53	
3.92	0.00	174.12	
3.93	0.00	175.72	
3.94	0.00	177.33	
3.95	0.00	178.95	
3.96	0.00	180.58	
3.97	0.00	182.22	
3.98	0.00	183.87	
3.99	0.00	185.53	
4.00	0.00	187.20	
4.01	0.00	188.88	
4.02	0.00	190.56	
4.03	0.00	192.26	
4.04	0.00	193.97	
4.05	0.00	195.68	
4.06	0.00	197.41	
4.07	0.00	199.14	
4.08	0.00	200.89	
4.09	0.00	202.64	
4.10	0.00	204.41	
4.11	0.00	206.18	
4.12	0.00	207.97	
4.13	0.00	209.76	
4.14	0.00	211.56	
4.15	0.00	213.38	
4.16	0.00	215.20	
4.17	0.00	217.03	
4.18	0.00	218.88	
4.19	0.00	220.73	
4.20	0.00	222.59	
4.21	0.00	224.47	
4.22	0.00	226.35	
4.23	0.00	228.25	
4.24	0.00	230.15	
4.25	0.00	232.06	
4.26	0.00	233.99	
4.27	0.00	235.92	
4.28	0.00	237.87	
4.29	0.00	239.82	
4.30	0.00	241.79	
4.31	0.00	243.76	
4.32	0.00	245.75	
4.33	0.00	247.74	
4.34	0.00	249.75	
4.35	0.00	251.76	
4.36	0.00	253.79	
4.37	0.00	255.83	
4.38	0.00	257.87	
4.39	0.00	259.93	
4.40	0.00	262.00	
4.41	0.00	264.08	
4.42	0.00	266.17	
4.43	0.00	268.27	
4.44	0.00	270.38	
4.45	0.00	272.50	
4.46	0.00	274.63	
4.47	0.00	276.77	
4.48	0.00	278.93	
4.49	0.00	281.09	
4.50	0.00	283.27	
4.51	0.00	285.45	
4.52	0.00	287.65	
4.53	0.00	289.85	
4.54	0.00	292.07	
4.55	0.00	294.30	
4.56	0.00	296.54	
4.57	0.00	298.79	
4.58	0.00	301.05	
4.59	0.00	303.32	
4.60	0.00	305.60	
4.61	0.00	307.89	
4.62	0.00	310.20	
4.63	0.00	312.51	
4.64	0.00	314.84	
4.65	0.00	317.18	
4.66	0.00	319.53	
4.67	0.00	321.89	
4.68	0.00	324.26	
4.69	0.00	326.64	
4.70	0.00	329.03	
4.71	0.00	331.44	
4.72	0.00	333.85	
4.73	0.00	336.28	
4.74	0.00	338.72	
4.75	0.00	341.16	
4.76	0.00	343.63	
4.77	0.00	346.10	
4.78	0.00	348.58	
4.79	0.00	351.07	
4.80	0.00	353.58	
4.81	0.00	356.10	
4.82	0.00	358.63	
4.83	0.00	361.17	
4.84	0.00	363.72	
4.85	0.00	366.28	
4.86	0.00	368.85	
4.87	0.00	371.44	
4.88	0.00	374.04	
4.89	0.00	376.65	
4.90	0.00	379.27	
4.91	0.00	381.90	
4.92	0.00	384.54	
4.93	0.00	387.20	
4.94	0.00	389.87	
4.95	0.00	392.55	
4.96	0.00	395.24	
4.97	0.00	397.94	
4.98	0.00	400.65	
4.99	0.00	403.38	
5.00	0.00	406.12	
5.01	0.00	408.87	
5.02	0.00	411.63	
5.03	0.00	414.40	
5.04	0.00	417.19	
5.05	0.00	419.99	
5.06	0.00	422.80	
5.07	0.00	425.62	
5.08	0.00	428.45	
5.09	0.00	431.30	
5.10	0.00	434.15	
5.11	0.00	437.02	
5.12	0.00	439.90	
5.13	0.00	442.80	
5.14	0.00	445.70	
5.15	0.00	448.62	
5.16	0.00	451.55	
5.17	0.00	454.49	
5.18	0.00	457.45	
5.19	0.00	460.41	
5.20	0.00	463.39	
5.21	0.00	466.39	
5.22	0.00	469.39	
5.23	0.00	472.41	
5.24	0.00	475.43	
5.25	0.00	478.47	
5.26	0.00	481.53	
5.27	0.00	484.59	
5.28	0.00	487.67	
5.29	0.00	490.76	
5.30	0.00	493.86	*