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Layer: Stream Samples (ID: 7)

Name: Stream Samples

Display Field: WeatherCond

Type: Table

Geometry Type: N/A

Description: This related table logs individual water sampling events conducted by the Environmental Services Department. Multiple sample records link back to a single parent monitoring site over time, establishing a historical time-series of watershed health and physical/chemical water conditions.Collected Parameters & Automated Alerts:Physical & Environmental Conditions: Tracks sampling timestamp, ambient weather, flow conditions, visual water clarity/color, air and water temperatures, and physical flow rates ($m/s$).Water Chemistry & Pollutants: Measures key field indicators ($pH$, $DO$, Turbidity, Specific Conductance, TDS, Salinity) and tests for potential illicit discharges or contaminant indicators (Chlorine, Heavy Metals like $Cu$ and $Cr$, Detergents, Phenol, Ammonia, and Bacteria).Automated Exceedance Indicators: Contains calculated warning fields (pHWarningHigh, TurbWarningExtraHigh, DOWarningLow, etc.) used in ArcGIS web applications and dashboards to instantly flag parameter values that exceed environmental safety or regulatory thresholds.Maintenance & Update Frequency: Continual / Event-Driven (Updated directly by field staff following each sampling event)Process Step (Lineage Description):Field Collection: Environmental Services staff log water quality measurements directly in the field using mobile GIS apps (e.g., ArcGIS Field Maps or Survey123).Relationship Linking: Each submitted record captures the parent station's GlobalID into the SiteIdentifier GUID field to maintain the $1:M$ relationship class.Threshold Checking: Analytical results populate warning fields automatically or during field entry if measured values fall outside expected water quality standard ranges.

Service Item Id: cfba511bdbea48c2adcd76eff1340ded

Copyright Text: City of Grapevine Public Works Department - Environmental Services Division, PW GIS Division.

Default Visibility: false

Max Result Window: N/A

Max Record Count: 2000

Standard Max Record Count No Geometry: N/A

Max Record Count Factor: 1

Standard MaxRecord Count: 32000

Tile Max Record Count: 2000

MaxSelectionCount: 0

Supported Query Formats: JSON, PBF

Supports Advanced Queries: true

Supports Statistics: true

Use Standardized Queries: true

Extent:
Drawing Info: Feature Draw Order: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: true

Has Last Edit Time: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: N/A

Fields: Relationships:
Supported Operations:   Query   Query Attachments   Query Analytic   Query Related Records   Generate Renderer   Return Updates

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