Window 2026-07-01 → 2026-07-15 · 7 active flower rooms · substrate + climate from AROYA public API (stitched hourly, full-span) · generated 2026-07-15 19:29 UTC
Headline
Rooms audited
7
Facility mean dryback
27.5 pp
Facility mean VPD
1.20 kPa
Rooms w/ wide EC spread
6
Dryback is reported in absolute percentage points (daily VWC peak − trough), the primary crop-steering lever. Substrate (pore) EC is the steering output — its trajectory (stack early-flower → pull back in bulking → restack in ripening) matters more than any single value. Steering intent below is inferred from the data; the grower's configured targets could not be read this run (AROYA SPA session offline — see Data Quality).
Uneven zone EC flagged: CU1, CU2, CU3, CU4, CU5, CU6 show ≥2 mS/cm spread between substrate zones over the window — check for channeling, dripper uniformity, or mixed-cultivar zone loading. This is the strongest drip-and-drain talking point in the data.
Per-room deep dive
Each room: substrate VWC (dryback shape), pore-EC by zone (steering output + zone uniformity), VPD, and air temperature — hourly over the full 14 days.
CU1 #13608
VWC mean
50.9%
min 35.8 · max 68.4
Daily dryback
29.1 pp
peak-day 31.1 pp (absolute)
Shots / day
2.8
≥2pp VWC step-ups
Substrate EC
11.9
traj 10.1→13.9 (+3.8) ⚠️ wide zone spread
VPD mean
1.43
kPa
Air / Soil °F
75.4
soil 74.0 · RH 52.5% · CO₂ 1367
CU2 #13609
VWC mean
50.2%
min 33.8 · max 73.2
Daily dryback
27.1 pp
peak-day 31.5 pp (absolute)
Shots / day
2.6
≥2pp VWC step-ups
Substrate EC
9.5
traj 6.7→11.4 (+4.7) ⚠️ wide zone spread
VPD mean
1.10
kPa
Air / Soil °F
74.7
soil 76.1 · RH 62.8% · CO₂ 1301
CU3 #13610
VWC mean
41.0%
min 1.9 · max 72.0
Daily dryback
33.0 pp
peak-day 66.2 pp (absolute)
Shots / day
2.6
≥2pp VWC step-ups
Substrate EC
8.9
traj 12.6→1.2 (-11.5) ⚠️ wide zone spread
VPD mean
1.09
kPa
Air / Soil °F
68.4
soil 68.7 · RH 54.1% · CO₂ 1118
CU4 #13611
VWC mean
42.9%
min 26.3 · max 61.9
Daily dryback
26.9 pp
peak-day 35.6 pp (absolute)
Shots / day
2.7
≥2pp VWC step-ups
Substrate EC
12.0
traj 11.7→9.8 (-1.9) ⚠️ wide zone spread
VPD mean
1.14
kPa
Air / Soil °F
70.9
soil 70.9 · RH 55.6% · CO₂ 1148
CU5 #13612
VWC mean
39.4%
min 26.0 · max 58.1
Daily dryback
24.5 pp
peak-day 31.0 pp (absolute)
Shots / day
2.5
≥2pp VWC step-ups
Substrate EC
13.5
traj 12.4→13.6 (+1.2) ⚠️ wide zone spread
VPD mean
1.53
kPa
Air / Soil °F
75.2
soil 73.7 · RH 48.6% · CO₂ 1276
CU6 #13614
VWC mean
33.8%
min 17.3 · max 63.4
Daily dryback
38.3 pp
peak-day 43.6 pp (absolute)
Shots / day
2.9
≥2pp VWC step-ups
Substrate EC
8.2
traj 11.3→4.5 (-6.8) ⚠️ wide zone spread
VPD mean
1.24
kPa
Air / Soil °F
71.3
soil 72.5 · RH 53.0% · CO₂ 1012
VEG #13615
VWC mean
41.8%
min 12.6 · max 61.7
Daily dryback
13.3 pp
peak-day 38.2 pp (absolute)
Shots / day
2.2
≥2pp VWC step-ups
Substrate EC
3.4
traj 1.9→1.2 (-0.7)
VPD mean
0.85
kPa
Air / Soil °F
79.3
soil 78.6 · RH 75.0% · CO₂ 1755
Irrigation framing reference (P0–P3 day model)
P0 — Activation (lights-on → first shot; wait for transpiration to start). P1 — Ramp-up (small shots back to field capacity + first runoff). P2 — Maintenance (pulses holding VWC at FC, managing substrate EC via runoff). P3 — Dry-down (last shot → next morning; the primary steering lever, read as overnight dryback in absolute pp). Dryback benchmarks (absolute pp): veg 5–15 · early-flower/stretch 20–30 · bulking 12–18 · ripening 25–35. VPD (kPa): veg 0.8–1.1 · flower 1.0–1.4. Substrate EC (mS/cm): stacks into early flower, pulled back in bulking, restacked in ripening.
Data Quality & limitations
Source: AROYA public API room-chart endpoint, stitched into a continuous 14-day hourly series (2-day cap per request worked around). Coverage spans 2026-07-01 → 2026-07-15 for every room — full window.
Not available this run: harvest-group / cultivar metadata, per-room steering config, target ranges, and device-health — all live behind the AROYA SPA session, which was offline (expired token, no interactive login). Numbers above are measured environmental/substrate telemetry; they are not graded against the grower's configured guardrails because those could not be read.
Dryback uses a daily peak−trough absolute-pp proxy; true overnight (P3) dryback requires the lights-schedule from config. Shots/day are inferred from ≥2pp hourly VWC step-ups, not drip-volume events.
Facility ambiguity: today's "Balanced — Drip and Drain" meeting resolved to the Balanced LA org (3 active facilities); this report covers Balanced LA — Cecilia specifically. Confirm this is the site in question.