1 Lower and upper PMSD bounds were determined from the 10th and 90th percentile, respectively, of PMSD data from EPA's WET Interlaboratory Variability Study (USEPA, 2001a; USEPA, 2001b).
( ( ( ( 1 Lower ) and ) ( upper ( PMSD bounds ) ) ) ( ( were ( ( determined ( from ( ( ( ( ( the ( 10th ( and ( 90th percentile ) ) ) ) , ) respectively ) , ) ( of ( PMSD data ) ) ) ) ) ( from ( ( ( EPA 's ) ( WET ( Interlaboratory ( Variability Study ) ) ) ) ( -LRB- ( ( ( ( USEPA ( , 2001a ) ) ; ) ( ( USEPA , ) 2001b ) ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD 1) (JJR Lower)) (CC and) (NP (JJ upper) (JJ PMSD) (NNS bounds))) (VP (VBD were) (VP (VBN determined) (PP (IN from) (NP (NP (NP (DT the) (JJ 10th) (CC and) (JJ 90th) (NN percentile)) (, ,) (ADVP (RB respectively)) (, ,)) (PP (IN of) (NP (JJ PMSD) (NNS data))))) (PP (IN from) (NP (NP (NP (NNP EPA) (POS 's)) (NNP WET) (NNP Interlaboratory) (NNP Variability) (NNP Study)) (PRN (-LRB- -LRB-) (NP (NNP USEPA) (, ,) (NNP 2001a)) (: ;) (NP (NP (NNP USEPA)) (, ,) (NP (NNS 2001b))) (-RRB- -RRB-)))))) (. .)))
The data obtained from the EPA's WET Interlaboratory Variability Study was considered the most reliable and therefore used to establish the upper and lower PMSD bounds.
( ( ( The data ) ( obtained ( from ( ( the ( EPA 's ) ) ( WET ( Interlaboratory ( Variability Study ) ) ) ) ) ) ) ( ( was ( ( ( ( considered ( the ( most reliable ) ) ) and ) therefore ) ( used ( to ( establish ( ( ( the upper ) and ) ( lower ( PMSD bounds ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS data)) (VP (VBN obtained) (PP (IN from) (NP (NP (DT the) (NNP EPA) (POS 's)) (NNP WET) (NNP Interlaboratory) (NNP Variability) (NNP Study))))) (VP (VBD was) (VP (VP (VBN considered) (NP (DT the) (RBS most) (JJ reliable))) (CC and) (ADVP (RB therefore)) (VP (VBN used) (S (VP (TO to) (VP (VB establish) (NP (NP (DT the) (JJ upper)) (CC and) (NP (JJR lower) (NN PMSD) (NNS bounds))))))))) (. .)))