SRP PFNA COMPASS GW All Results in New Jersey

This GIS layer is based on a SQL query of the groundwater HAZSITE data that resides in COMPASS for each active Site Remediation case. Once the raw groundwater HAZSITE data is extracted from COMPASS, it is summarized such that a maximum concentration for the contaminant is derived for the year preceeding the last sampling event (samp_last_max_conc) and a maximum concentration is also generated for all sampling events (all_max_conc) . Each active Site Remediation case is included in the GIS layer. The GIS layer symbology is based on the the maximum concentration for the year preceeding the last sampling event for that contaminant as summarized in the evaluation field and further categorized in the s_value field. Symbology is represented as follows: no data submitted, not sampled, non-detect (ND), detected below standard, reporting limit > standard, 1 - 10 times the standard, 10 - 100 times the standard, 100 - 1000 times the standard and greater than 1000 times the standard. The standard is the NJDEP Ground Water Quality Standard and/or MCL for this contaminant. For the HAZSITE data, there are a number of considerations that need to be taken into account when using this GIS layer for decision making purposes:- Not all SRP cases have provided HAZSITE data to the Department or HAZSITE data that has been provided to the Department may be incomplete;- Additional sampling may have been conducted since the last round of HAZSITE data was submitted that has not yet been provided as HAZSITE data is only required with key document submittals;- HAZSITE data that was submitted may not have been provided in the correct format and therefore could not be uploaded into the COMPASS data repository and would therefore not be returned via the COMPASS SQL query.本GIS图层基于对存储于COMPASS系统内的各活跃场地修复案例的地下水HAZSITE数据执行SQL查询所得。从COMPASS系统提取原始HAZSITE地下水数据后，将对其进行汇总处理，分别计算该污染物在末次采样事件前一年的最大浓度（记为samp_last_max_conc），以及所有采样事件中的最大浓度（记为all_max_conc）。所有活跃场地修复案例均被纳入本GIS图层。本GIS图层的符号配置规则基于评估字段中汇总的、对应污染物末次采样事件前一年的最大浓度，并通过s_value字段进一步划分类别。符号类别具体如下：未提交数据、未采样、未检出（ND）、检出浓度低于标准、报告限值高于标准、标准的1~10倍、标准的10~100倍、标准的100~1000倍，以及超过标准1000倍以上。此处所指标准为新泽西州环境保护部（NJDEP）制定的地下水水质标准及/或该污染物的最高污染物水平（Maximum Contaminant Level, MCL）。若将本GIS图层用于决策制定，需注意以下HAZSITE数据相关的若干事项： - 并非所有场地修复项目（Site Remediation Project, SRP）均已向主管部门提交HAZSITE数据，或已提交的数据存在不完整情况； - 自末次提交HAZSITE数据以来，可能已开展额外采样工作，但因HAZSITE数据仅需随关键文件提交时一并上报，故新增采样数据尚未提交； - 已提交的HAZSITE数据可能格式有误，导致无法上传至COMPASS数据仓库，因此无法通过COMPASS的SQL查询获取此类数据。