PIIDEPW08054DEFINITIVE CONTRACT

TETRA TECH, INC.

UEI: LMRMKLLL3LG5

$25,556,735.53

Awarding Agency

Environmental Protection Agency

Sub-Agency

Environmental Protection Agency

Start Date

August 1, 2008

End Date

September 30, 2016

NAICS

541620

PSC

U006

Transactions (114)

Date	Mod #	Action	Obligation
Aug 1, 2008	0	—	+$970,266
Aug 26, 2008	1	FUNDING ONLY ACTION	+$1,607,482
Sep 9, 2008	2	FUNDING ONLY ACTION	+$283,167
Sep 23, 2008	3	FUNDING ONLY ACTION	+$75,000
Nov 19, 2008	4	OTHER ADMINISTRATIVE ACTION	+$0
Nov 25, 2008	5	FUNDING ONLY ACTION	+$20,550
Dec 3, 2008	6	FUNDING ONLY ACTION	+$48,750
Jan 26, 2009	7	FUNDING ONLY ACTION	+$1,850,000
Feb 25, 2009	8	OTHER ADMINISTRATIVE ACTION	+$0
Mar 10, 2009	9	OTHER ADMINISTRATIVE ACTION	+$0
Apr 8, 2009	10	FUNDING ONLY ACTION	+$37,500
Jun 4, 2009	11	FUNDING ONLY ACTION	+$916,560
Jul 9, 2009	12	FUNDING ONLY ACTION	+$1,150,000
Aug 26, 2009	13	FUNDING ONLY ACTION	+$646,391
Sep 30, 2009	14	FUNDING ONLY ACTION	+$147,552
Oct 29, 2009	15	OTHER ADMINISTRATIVE ACTION	+$0
Jan 29, 2010	16	FUNDING ONLY ACTION	+$10,000
Feb 12, 2010	17	FUNDING ONLY ACTION	+$20,300
Apr 14, 2010	18	FUNDING ONLY ACTION	+$2,358,000
Apr 28, 2010	19	FUNDING ONLY ACTION	+$95,763
May 6, 2010	20	FUNDING ONLY ACTION	+$360,000
May 14, 2010	21	OTHER ADMINISTRATIVE ACTION	-$30,000
Jun 29, 2010	22	FUNDING ONLY ACTION	+$658,100
Sep 30, 2010	23	FUNDING ONLY ACTION	+$876,857
Jan 21, 2011	27	FUNDING ONLY ACTION	+$582,000
Jan 21, 2011	24	FUNDING ONLY ACTION	+$892,000
Feb 17, 2011	25	OTHER ADMINISTRATIVE ACTION	+$0
Feb 28, 2011	30	FUNDING ONLY ACTION	+$166,000
Feb 28, 2011	26	FUNDING ONLY ACTION	+$0
Feb 28, 2011	29	FUNDING ONLY ACTION	+$0
Mar 4, 2011	28	OTHER ADMINISTRATIVE ACTION	+$0
Apr 4, 2011	32	FUNDING ONLY ACTION	-$83,263
Apr 5, 2011	31	OTHER ADMINISTRATIVE ACTION	+$0
Apr 7, 2011	33	FUNDING ONLY ACTION	+$0
Apr 11, 2011	34	OTHER ADMINISTRATIVE ACTION	+$0
Apr 12, 2011	35	FUNDING ONLY ACTION	+$383,400
Apr 13, 2011	36	OTHER ADMINISTRATIVE ACTION	+$0
Apr 28, 2011	37	OTHER ADMINISTRATIVE ACTION	+$0
May 12, 2011	38	OTHER ADMINISTRATIVE ACTION	+$0
May 18, 2011	39	OTHER ADMINISTRATIVE ACTION	+$0
Jul 19, 2011	40	EXERCISE AN OPTION	+$0
Jul 20, 2011	41	FUNDING ONLY ACTION	+$0
Jul 21, 2011	42	FUNDING ONLY ACTION	+$1,394,996
Aug 3, 2011	43	FUNDING ONLY ACTION	+$100,000
Aug 8, 2011	44	FUNDING ONLY ACTION	+$75,000
Aug 29, 2011	45	FUNDING ONLY ACTION	+$20,000
Aug 31, 2011	46	FUNDING ONLY ACTION	+$0
Sep 14, 2011	47	FUNDING ONLY ACTION	+$20,000
Sep 20, 2011	48	FUNDING ONLY ACTION	+$150,000
Nov 28, 2011	49	OTHER ADMINISTRATIVE ACTION	+$0
Feb 7, 2012	50	OTHER ADMINISTRATIVE ACTION	+$1,131,000
Feb 29, 2012	51	OTHER ADMINISTRATIVE ACTION	+$0
Mar 8, 2012	52	FUNDING ONLY ACTION	+$22,500
Mar 22, 2012	53	FUNDING ONLY ACTION	+$0
Jun 6, 2012	54	FUNDING ONLY ACTION	+$245,000
Jun 19, 2012	55	FUNDING ONLY ACTION	+$1,256,500
Jul 12, 2012	56	FUNDING ONLY ACTION	+$0
Jul 27, 2012	57	FUNDING ONLY ACTION	+$11,600
Aug 14, 2012	58	OTHER ADMINISTRATIVE ACTION	+$747,500
Sep 6, 2012	59	FUNDING ONLY ACTION	+$57,617
Sep 19, 2012	60	FUNDING ONLY ACTION	+$60,000
Sep 20, 2012	61	OTHER ADMINISTRATIVE ACTION	+$0
Oct 24, 2012	62	FUNDING ONLY ACTION	+$20,000
Nov 29, 2012	63	FUNDING ONLY ACTION	+$15,000
Dec 27, 2012	64	FUNDING ONLY ACTION	+$127,500
Jan 3, 2013	65	FUNDING ONLY ACTION	+$570,000
Jan 29, 2013	66	FUNDING ONLY ACTION	+$2,000
Feb 25, 2013	67	FUNDING ONLY ACTION	+$10,000
Apr 3, 2013	68	OTHER ADMINISTRATIVE ACTION	+$0
May 16, 2013	69	FUNDING ONLY ACTION	+$272,500
Jun 10, 2013	70	FUNDING ONLY ACTION	+$20,000
Jun 10, 2013	71	FUNDING ONLY ACTION	+$150,000
Jul 26, 2013	72	EXERCISE AN OPTION	+$100,000
Aug 13, 2013	73	FUNDING ONLY ACTION	+$12,500
Aug 20, 2013	74	FUNDING ONLY ACTION	+$0
Aug 26, 2013	75	FUNDING ONLY ACTION	+$873,534
Nov 19, 2013	76	FUNDING ONLY ACTION	-$85,417
Nov 25, 2013	77	OTHER ADMINISTRATIVE ACTION	+$0
Dec 16, 2013	78	FUNDING ONLY ACTION	+$7,469
Jan 27, 2014	79	FUNDING ONLY ACTION	-$2,517
Feb 20, 2014	80	FUNDING ONLY ACTION	+$20,000
Mar 18, 2014	81	FUNDING ONLY ACTION	+$0
Mar 20, 2014	82	FUNDING ONLY ACTION	+$15,000
May 7, 2014	83	FUNDING ONLY ACTION	+$2,000
Jul 1, 2014	84	FUNDING ONLY ACTION	+$1,178,000
Jul 14, 2014	85	OTHER ADMINISTRATIVE ACTION	+$75,000
Aug 5, 2014	86	OTHER ADMINISTRATIVE ACTION	+$100,000
Aug 6, 2014	87	FUNDING ONLY ACTION	+$30,000
Aug 12, 2014	88	FUNDING ONLY ACTION	+$50,000
Sep 11, 2014	89	FUNDING ONLY ACTION	+$219,000
Dec 3, 2014	90	OTHER ADMINISTRATIVE ACTION	+$0
Mar 19, 2015	91	OTHER ADMINISTRATIVE ACTION	+$200,000
May 27, 2015	92	FUNDING ONLY ACTION	+$124,000
Jun 3, 2015	93	FUNDING ONLY ACTION	-$34,932
Jun 17, 2015	94	FUNDING ONLY ACTION	+$1,124,000
Jun 30, 2015	95	FUNDING ONLY ACTION	+$27,000
Jul 8, 2015	96	FUNDING ONLY ACTION	+$13,500
Aug 18, 2015	97	FUNDING ONLY ACTION	+$124,000
Aug 26, 2015	98	FUNDING ONLY ACTION	-$2
Sep 14, 2015	99	OTHER ADMINISTRATIVE ACTION	+$100,000
Sep 17, 2015	100	FUNDING ONLY ACTION	+$280,000
Jan 20, 2016	101	ADDITIONAL WORK (NEW AGREEMENT,FAR PART 6 APPLIES)	+$0
Feb 24, 2016	102	OTHER ADMINISTRATIVE ACTION	+$0
Apr 18, 2016	103	FUNDING ONLY ACTION	+$226,306
May 13, 2016	104	FUNDING ONLY ACTION	-$9,840
May 26, 2016	105	ADDITIONAL WORK (NEW AGREEMENT,FAR PART 6 APPLIES)	+$0
Jun 17, 2016	106	FUNDING ONLY ACTION	+$16,294
Jun 29, 2016	107	FUNDING ONLY ACTION	+$239,771
Jul 1, 2016	108	OTHER ADMINISTRATIVE ACTION	+$0
Jul 19, 2016	109	OTHER ADMINISTRATIVE ACTION	+$0
Aug 8, 2016	110	FUNDING ONLY ACTION	+$75,000
Jan 4, 2017	111	FUNDING ONLY ACTION	-$2,187
Mar 9, 2017	112	FUNDING ONLY ACTION	-$60,832
Jun 4, 2019	P00113	FUNDING ONLY ACTION	-$1,000